MS13-021  Cumulative Security Update for Internet Explorer

2013-03-12 This security update resolves eight privately reported vulnerabilities and one publicly disclosed vulnerability in Internet Explorer. The most severe vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the current user. 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.
Vulnerabilities addressed in this bulletin:

Internet Explorer OnResize Use After Free Vulnerability

Remote code execution vulnerabilities exist in the way that Internet Explorer accesses an object in memory that has been deleted. These vulnerabilities may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.
CVE-2013-0087

Internet Explorer saveHistory Use After Free Vulnerability

Remote code execution vulnerabilities exist in the way that Internet Explorer accesses an object in memory that has been deleted. These vulnerabilities may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.
CVE-2013-0088

Internet Explorer CMarkupBehaviorContext Use After Free Vulnerability

Remote code execution vulnerabilities exist in the way that Internet Explorer accesses an object in memory that has been deleted. These vulnerabilities may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.
CVE-2013-0089

Internet Explorer CCaret Use After Free Vulnerability

Remote code execution vulnerabilities exist in the way that Internet Explorer accesses an object in memory that has been deleted. These vulnerabilities may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.
CVE-2013-0090

Internet Explorer CElement Use After Free Vulnerability

Remote code execution vulnerabilities exist in the way that Internet Explorer accesses an object in memory that has been deleted. These vulnerabilities may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.
CVE-2013-0091

Internet Explorer GetMarkupPtr Use After Free Vulnerability

Remote code execution vulnerabilities exist in the way that Internet Explorer accesses an object in memory that has been deleted. These vulnerabilities may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.
CVE-2013-0092

Internet Explorer onBeforeCopy Use After Free Vulnerability

Remote code execution vulnerabilities exist in the way that Internet Explorer accesses an object in memory that has been deleted. These vulnerabilities may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.
CVE-2013-0093

Internet Explorer removeChild Use After Free Vulnerability

Remote code execution vulnerabilities exist in the way that Internet Explorer accesses an object in memory that has been deleted. These vulnerabilities may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.
CVE-2013-0094

Internet Explorer CTreeNode Use After Free Vulnerability

Remote code execution vulnerabilities exist in the way that Internet Explorer accesses an object in memory that has been deleted. These vulnerabilities may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.
CVE-2013-1288

Bulletin details at Microsoft.com