Internet Explorer Memory Corruption Vulnerability
CVE-2017-8727 is fixed in 24 products on 1 platform, first by KB4041689, released October 10, 2017. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.
<p>A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory via the Microsoft Windows Text Services Framework. 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, the attacker 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.</p> <p>An attacker could host a specially crafted website designed to exploit the vulnerability through Internet Explorer, and then convince a user to view the website. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted content that could exploit the vulnerability. In all cases, however, an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically by an enticement in an email or instant message, or by getting them to open an attachment sent through email.</p> <p>The security update addresses the vulnerability by modifying how the Microsoft Windows Text Services Framework handles objects in memory.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1511 for 32-bit Systems | 10586.1176 | KB4041689 | Oct 10, 2017 |
| Windows 10 Version 1511 for x64-based Systems | 10586.1176 | KB4041689 | Oct 10, 2017 |
| Windows 10 Version 1607 for 32-bit Systems | 14393.1770 | KB4041691 | Oct 10, 2017 |
| Windows 10 Version 1607 for x64-based Systems | 14393.1770 | KB4041691 | Oct 10, 2017 |
| Windows 10 Version 1703 for 32-bit Systems | 15063.674 | KB4041676 | Oct 10, 2017 |
| Windows 10 Version 1703 for x64-based Systems | 15063.674 | KB4041676 | Oct 10, 2017 |
| Windows 10 for 32-bit Systems | 10240.17643 | KB4042895 | Oct 10, 2017 |
| Windows 10 for x64-based Systems | 10240.17643 | KB4042895 | Oct 10, 2017 |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4041681 | Oct 10, 2017 | |
| Windows 7 for 32-bit Systems Service Pack 1 | KB4041678 | Oct 10, 2017 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4041681 | Oct 10, 2017 | |
| Windows 7 for x64-based Systems Service Pack 1 | KB4041678 | Oct 10, 2017 | |
| Windows 8.1 for 32-bit systems | KB4041693 | Oct 10, 2017 | |
| Windows 8.1 for 32-bit systems | KB4041687 | Oct 10, 2017 | |
| Windows 8.1 for x64-based systems | KB4041693 | Oct 10, 2017 | |
| Windows 8.1 for x64-based systems | KB4041687 | Oct 10, 2017 | |
| Windows RT 8.1 | KB4041693 | Oct 10, 2017 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4042123 | Oct 10, 2017 | |
| Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | KB4042123 | Oct 10, 2017 | |
| Windows Server 2008 for Itanium-Based Systems Service Pack 2 | KB4042123 | Oct 10, 2017 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 | KB4042123 | Oct 10, 2017 | |
| Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | KB4042123 | Oct 10, 2017 | |
| Windows Server 2012 | KB4041690 | Oct 10, 2017 | |
| Windows Server 2012 | KB4041679 | Oct 10, 2017 | |
| Windows Server 2012 (Server Core installation) | KB4041690 | Oct 10, 2017 | |
| Windows Server 2012 (Server Core installation) | KB4041679 | Oct 10, 2017 | |
| Windows Server 2012 R2 | KB4041693 | Oct 10, 2017 | |
| Windows Server 2012 R2 | KB4041687 | Oct 10, 2017 | |
| Windows Server 2012 R2 (Server Core installation) | KB4041693 | Oct 10, 2017 | |
| Windows Server 2012 R2 (Server Core installation) | KB4041687 | Oct 10, 2017 | |
| Windows Server 2016 | 14393.1770 | KB4041691 | Oct 10, 2017 |
| Windows Server 2016 (Server Core installation) | 14393.1770 | KB4041691 | Oct 10, 2017 |