Cumulative Security Update for Internet Explorer
Description: This security update is being released out of band in conjunction with Microsoft Security Bulletin MS09-035, which describes vulnerabilities in those components and controls that have been developed using vulnerable versions of the Microsoft Active Template Library (ATL). As a defense-in-depth measure, this Internet Explorer security update helps mitigate known attack vectors within Internet Explorer for those components and controls that have been developed with vulnerable versions of ATL as described in Microsoft Security Advisory (973882) and Microsoft Security Bulletin MS09-035.
This security update also resolves three privately reported vulnerabilities in Internet Explorer. These vulnerabilities could allow remote code execution if a user views a specially crafted Web page using Internet Explorer. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
This security update is rated Critical for Internet Explorer 5.01 and Internet Explorer 6 Service Pack 1, running on supported editions of Microsoft Windows 2000; Critical for Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 running on supported editions of Windows XP; Critical for Internet Explorer 7 and Internet Explorer 8 running on supported editions of Windows Vista; Moderate for Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 running on supported editions of Windows Server 2003; and Moderate for Internet Explorer 7 and Internet Explorer 8 running on supported editions of Windows Server 2008. For more information, see the subsection, Affected and Non-Affected Software, in this section.
The security update addresses these vulnerabilities by modifying the way that Internet Explorer handles objects in memory and table operations. For more information about the vulnerabilities, see the Frequently Asked Questions (FAQ) subsection under the next section, Vulnerability Information.
Update type: None
Release date: July 28, 2009
Applies to: All versions
Knowledge base: http://support.microsoft.com/kb/972260
Download link: 32-bit | 64-bit
Comments:Note that the download links vary depending on the version of Internet Explorer you have installed. Here are the specifics on the vulnerabilities covered by this update:
- Memory Corruption Vulnerability – CVE-2009-1917
- HTML Objects Memory Corruption Vulnerability – CVE-2009-1918
- Uninitialized Memory Corruption Vulnerability – CVE-2009-1919
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB972260.