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Security Advisory - June 11, 2019

Zscaler protects against 19 new vulnerabilities for Microsoft Windows, Internet Explorer, Microsoft Edge and ChakraCore.

 

 

Zscaler, working with Microsoft through their MAPP program, has proactively deployed protection for the following 19 vulnerabilities included in the June 2019 Microsoft security bulletins. Zscaler will continue to monitor exploits associated with all vulnerabilities in the June release and deploy additional protections as necessary. 

CVE-2019-0863 – Windows Error Reporting Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1703 for 32-bit Systems
  • Windows 10 Version 1703 for x64-based Systems
  • Windows 10 Version 1709 for 32-bit Systems
  • Windows 10 Version 1709 for 64-based Systems
  • Windows 10 Version 1709 for ARM64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1903 for 32-bit Systems
  • Windows 10 Version 1903 for ARM64-based Systems
  • Windows 10 Version 1903 for x64-based Systems
  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows RT 8.1
  • Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server, version 1803 (Server Core Installation)
  • Windows Server, version 1903 (Server Core installation)

An elevation of privilege vulnerability exists in the way Windows Error Reporting (WER) handles files. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with administrator privileges. To exploit the vulnerability, an attacker must first gain unprivileged execution on a victim system. The security update addresses the vulnerability by correcting the way WER handles files.

CVE-2019-0943 – Windows ALPC Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows Server 2012 R2
  • Windows RT 8.1
  • Windows Server 2012 R2 (Server Core installation)
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows Server 2016
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows Server 2016 (Server Core installation)
  • Windows 10 Version 1703 for 32-bit Systems
  • Windows 10 Version 1703 for x64-based Systems
  • Windows 10 Version 1709 for 32-bit Systems
  • Windows 10 Version 1709 for x64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows Server, version 1803 (Server Core Installation)
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows 10 Version 1709 for ARM64-based Systems
  • Windows 10 Version 1903 for 32-bit Systems
  • Windows 10 Version 1903 for x64-based Systems
  • Windows 10 Version 1903 for ARM64-based Systems
  • Windows Server, version 1903 (Server Core installation)

An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC). An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control over an affected system. The update addresses the vulnerability by correcting how Windows handles calls to ALPC.

CVE-2019-0984 – Windows Common Log File System Driver Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows Server 2012 R2
  • Windows RT 8.1
  • Windows Server 2012 R2 (Server Core installation)
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows Server 2016
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows Server 2016 (Server Core installation)
  • Windows 10 Version 1703 for 32-bit Systems
  • Windows 10 Version 1703 for x64-based Systems
  • Windows 10 Version 1709 for 32-bit Systems
  • Windows 10 Version 1709 for x64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows Server, version 1803 (Server Core Installation)
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows 10 Version 1709 for ARM64-based Systems
  • Windows 10 Version 1903 for 32-bit Systems
  • Windows 10 Version 1903 for x64-based Systems
  • Windows 10 Version 1903 for ARM64-based Systems
  • Windows Server, version 1903 (Server Core installation)
  • Windows Server 2008 for Itanium-Based Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)

An elevation of privilege vulnerability exists when the Windows Common Log File System (CLFS) driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. To exploit the vulnerability, an attacker would first have to log on to the system, and then run a specially crafted application to take control over the affected system. The security update addresses the vulnerability by correcting how CLFS handles objects in memory.

CVE-2019-0986 – Windows User Profile Service Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows Server 2012 R2
  • Windows RT 8.1
  • Windows Server 2012 R2 (Server Core installation)
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows Server 2016
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows Server 2016 (Server Core installation)
  • Windows 10 Version 1703 for 32-bit Systems
  • Windows 10 Version 1703 for x64-based Systems
  • Windows 10 Version 1709 for 32-bit Systems
  • Windows 10 Version 1709 for x64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows Server, version 1803 (Server Core Installation)
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows 10 Version 1709 for ARM64-based Systems
  • Windows 10 Version 1903 for 32-bit Systems
  • Windows 10 Version 1903 for x64-based Systems
  • Windows 10 Version 1903 for ARM64-based Systems
  • Windows Server, version 1903 (Server Core installation)
  • Windows Server 2008 for Itanium-Based Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)

An elevation of privilege vulnerability exists when the Windows User Profile Service (ProfSvc) improperly handles symlinks. An attacker who successfully exploited this vulnerability could delete files and folders in an elevated context. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and delete files or folders of their choosing. The security update addresses the vulnerability by correcting how the Windows User Profile Service handles symlinks.

CVE-2019-0988 – Scripting Engine Memory Corruption Vulnerability

Severity: Critical

Affected Software

  • Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1
  • Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1
  • Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Internet Explorer 11 on Windows 8.1 for 32-bit systems
  • Internet Explorer 11 on Windows 8.1 for x64-based systems
  • Internet Explorer 11 on Windows Server 2012 R2
  • Internet Explorer 11 on Windows RT 8.1
  • Internet Explorer 11 on Windows 10 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 for x64-based Systems
  • Internet Explorer 11 on Windows Server 2016
  • Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems
  • Internet Explorer 11 on Windows Server 2019
  • Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems
  • Internet Explorer 10 on Windows Server 2012

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked safe for initialization in an application or Microsoft Office document that hosts the IE rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.

CVE-2019-0989 – Chakra Scripting Engine Memory Corruption Vulnerability

Severity: Critical

Affected Software

  • Microsoft Edge on Windows 10 for 32-bit Systems
  • Microsoft Edge on Windows 10 for x64-based Systems
  • Microsoft Edge on Windows Server 2016
  • Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1607 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1703 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1709 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1809 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft Edge on Windows Server 2019
  • Microsoft Edge on Windows 10 Version 1709 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1903 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for ARM64-based Systems
  • ChakraCore

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.

CVE-2019-0991 – Chakra Scripting Engine Memory Corruption Vulnerability

Severity: Critical

Affected Software

  • Microsoft Edge on Windows 10 for 32-bit Systems
  • Microsoft Edge on Windows 10 for x64-based Systems
  • Microsoft Edge on Windows Server 2016
  • Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1607 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1703 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1709 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1809 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft Edge on Windows Server 2019
  • Microsoft Edge on Windows 10 Version 1709 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1903 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for ARM64-based Systems
  • ChakraCore

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.

CVE-2019-0992 – Chakra Scripting Engine Memory Corruption Vulnerability

Severity: Critical

Affected Software

  • Microsoft Edge on Windows 10 for 32-bit Systems
  • Microsoft Edge on Windows 10 for x64-based Systems
  • Microsoft Edge on Windows Server 2016
  • Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1607 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1703 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1709 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1809 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft Edge on Windows Server 2019
  • Microsoft Edge on Windows 10 Version 1709 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1903 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for ARM64-based Systems

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.

CVE-2019-0993 – Chakra Scripting Engine Memory Corruption Vulnerability

Severity: Critical

Affected Software

  • Microsoft Edge on Windows 10 for 32-bit Systems
  • Microsoft Edge on Windows 10 for x64-based Systems
  • Microsoft Edge on Windows Server 2016
  • Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1607 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1703 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1709 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1809 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft Edge on Windows Server 2019
  • Microsoft Edge on Windows 10 Version 1709 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1903 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for ARM64-based Systems
  • ChakraCore

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.

CVE-2019-1002 – Chakra Scripting Engine Memory Corruption Vulnerability

Severity: Critical

Affected Software

  • Microsoft Edge on Windows 10 for 32-bit Systems
  • Microsoft Edge on Windows 10 for x64-based Systems
  • Microsoft Edge on Windows Server 2016
  • Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1607 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1703 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1709 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1709 for ARM64-based Systems

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.

CVE-2019-1005 – Scripting Engine Memory Corruption Vulnerability

Severity: Important

Affected Software

  • Internet Explorer 9 on Windows Server 2008 for 32-bit Systems Service Pack 2
  • Internet Explorer 9 on Windows Server 2008 for x64-based Systems Service Pack 2
  • Internet Explorer 11 on Windows 7 for 32-bit Systems Service Pack 1
  • Internet Explorer 11 on Windows 7 for x64-based Systems Service Pack 1
  • Internet Explorer 11 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Internet Explorer 11 on Windows 8.1 for 32-bit systems
  • Internet Explorer 11 on Windows 8.1 for x64-based systems
  • Internet Explorer 11 on Windows Server 2012 R2
  • Internet Explorer 11 on Windows RT 8.1
  • Internet Explorer 11 on Windows 10 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 for x64-based Systems
  • Internet Explorer 11 on Windows Server 2016
  • Internet Explorer 11 on Windows 10 Version 1607 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1607 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1703 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1703 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems
  • Internet Explorer 11 on Windows Server 2019
  • Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems
  • Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems
  • Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems
  • Internet Explorer 10 on Windows Server 2012

A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

In a web-based attack scenario, an attacker could host a specially crafted website designed to exploit the vulnerability through a Microsoft browser and then convince a user to view the website. An attacker could also embed an ActiveX control marked safe for initialization in an application or Microsoft Office document that hosts the browser rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the scripting engine handles objects in memory.

CVE-2019-1023 – Scripting Engine Information Disclosure Vulnerability

Severity: Critical

Affected Software

  • Microsoft Edge on Windows 10 for 32-bit Systems
  • Microsoft Edge on Windows 10 for x64-based Systems
  • Microsoft Edge on Windows Server 2016
  • Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1607 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1703 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1709 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1809 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft Edge on Windows Server 2019
  • Microsoft Edge on Windows 10 Version 1709 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1903 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for ARM64-based Systems
  • ChakraCore

An information disclosure vulnerability exists when the scripting engine does not properly handle objects in memory in Microsoft Edge. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system. In a web-based attack scenario, an attacker could host a website in an attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could trick a user into clicking a link that takes the user to the attacker's site. The security update addresses the vulnerability by changing how the scripting engine handles objects in memory.

CVE-2019-1041 – Windows Kernel Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows Server, version 1803 (Server Core Installation)
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows 10 Version 1903 for 32-bit Systems
  • Windows 10 Version 1903 for x64-based Systems
  • Windows 10 Version 1903 for ARM64-based Systems
  • Windows Server, version 1903 (Server Core installation)

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The update addresses this vulnerability by correcting how Win32k handles objects in memory.

CVE-2019-1051 – Chakra Scripting Engine Memory Corruption Vulnerability

Severity: Critical

Affected Software

  • Microsoft Edge on Windows 10 for 32-bit Systems
  • Microsoft Edge on Windows 10 for x64-based Systems
  • Microsoft Edge on Windows Server 2016
  • Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1607 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1703 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1709 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1809 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft Edge on Windows Server 2019
  • Microsoft Edge on Windows 10 Version 1709 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1903 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for ARM64-based Systems
  • ChakraCore

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.

CVE-2019-1052 – Chakra Scripting Engine Memory Corruption Vulnerability

Severity: Critical

Affected Software

  • Microsoft Edge on Windows 10 for 32-bit Systems
  • Microsoft Edge on Windows 10 for x64-based Systems
  • Microsoft Edge on Windows Server 2016
  • Microsoft Edge on Windows 10 Version 1607 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1607 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1703 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1703 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1709 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1803 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1803 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1809 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft Edge on Windows Server 2019
  • Microsoft Edge on Windows 10 Version 1709 for ARM64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Edge on Windows 10 Version 1903 for x64-based Systems
  • Microsoft Edge on Windows 10 Version 1903 for ARM64-based Systems
  • ChakraCore

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft Edge and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the Chakra scripting engine handles objects in memory.

CVE-2019-1053 – Windows Shell Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows 8.1 for 32-bit systems
  • Windows 8.1 for x64-based systems
  • Windows Server 2012 R2
  • Windows RT 8.1
  • Windows Server 2012 R2 (Server Core installation)
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows Server 2016
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows Server 2016 (Server Core installation)
  • Windows 10 Version 1703 for 32-bit Systems
  • Windows 10 Version 1703 for x64-based Systems
  • Windows 10 Version 1709 for 32-bit Systems
  • Windows 10 Version 1709 for x64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows Server, version 1803 (Server Core Installation)
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows 10 Version 1709 for ARM64-based Systems
  • Windows 10 Version 1903 for 32-bit Systems
  • Windows 10 Version 1903 for x64-based Systems
  • Windows 10 Version 1903 for ARM64-based Systems
  • Windows Server, version 1903 (Server Core installation)
  • Windows Server 2008 for Itanium-Based Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)

An elevation of privilege vulnerability exists when the Windows Shell fails to validate folder shortcuts. An attacker who successfully exploited the vulnerability could elevate privileges by escaping a sandbox. To exploit this vulnerability, an attacker would require unprivileged execution on the victim system. The security update addresses the vulnerability by correctly validating folder shortcuts.

CVE-2019-1064 – Windows Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows Server 2016
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows Server 2016 (Server Core installation)
  • Windows 10 Version 1703 for 32-bit Systems
  • Windows 10 Version 1703 for x64-based Systems
  • Windows 10 Version 1709 for 32-bit Systems
  • Windows 10 Version 1709 for x64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows Server, version 1803 (Server Core Installation)
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows 10 Version 1709 for ARM64-based Systems
  • Windows 10 Version 1903 for 32-bit Systems
  • Windows 10 Version 1903 for x64-based Systems
  • Windows 10 Version 1903 for ARM64-based Systems
  • Windows Server, version 1903 (Server Core installation)

An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.

CVE-2019-1065 – Windows Kernel Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows Server, version 1803 (Server Core Installation)
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows 10 Version 1903 for 32-bit Systems
  • Windows 10 Version 1903 for x64-based Systems
  • Windows 10 Version 1903 for ARM64-based Systems
  • Windows Server, version 1903 (Server Core installation)

An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application to take control of an affected system. The update addresses the vulnerability by correcting how the Windows kernel handles objects in memory.

CVE-2019-1069 – Task Scheduler Elevation of Privilege Vulnerability

Severity: Important

Affected Software

  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows Server 2016
  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows Server 2016 (Server Core installation)
  • Windows 10 Version 1703 for 32-bit Systems
  • Windows 10 Version 1703 for x64-based Systems
  • Windows 10 Version 1709 for 32-bit Systems
  • Windows 10 Version 1709 for x64-based Systems
  • Windows 10 Version 1803 for 32-bit Systems
  • Windows 10 Version 1803 for x64-based Systems
  • Windows Server, version 1803 (Server Core Installation)
  • Windows 10 Version 1803 for ARM64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 1809 for ARM64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows 10 Version 1709 for ARM64-based Systems
  • Windows 10 Version 1903 for 32-bit Systems
  • Windows 10 Version 1903 for x64-based Systems
  • Windows 10 Version 1903 for ARM64-based Systems
  • Windows Server, version 1903 (Server Core installation)

An elevation of privilege vulnerability exists in the way the Task Scheduler Service validates certain file operations. An attacker who successfully exploited the vulnerability could gain elevated privileges on a victim system. To exploit the vulnerability, an attacker would require unprivileged code execution on a victim system.

The security update addresses the vulnerability by correctly validating file operations.