Cumulative Security Update for Internet Explorer

Last Update Date: 12 Mar 2015 Release Date: 11 Mar 2015 3744 Views

RISK: High Risk

TYPE: Clients - Browsers

Multiple Memory Corruption Vulnerabilities in Internet Explorer
Remote code execution vulnerabilities exist when Internet Explorer improperly accesses objects in memory. These vulnerabilities could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. The update addresses the vulnerabilities by modifying the way that Internet Explorer handles objects in memory.
VBScript Memory Corruption Vulnerability
A remote code execution vulnerability exists in the way that the VBScript engine, when rendered in Internet Explorer, handles objects in memory. The vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.
Internet Explorer Elevation of Privilege Vulnerabilities
An elevation of privilege vulnerability exists when Internet Explorer does not properly enforce cross-domain policies, which could allow an attacker to access information from one domain and inject it into another domain. The update addresses the vulnerability by helping to ensure that cross-domain policies are properly enforced in Internet Explorer.

Another elevation of privilege vulnerability exists when Internet Explorer does not properly validate permissions under specific conditions, potentially allowing script to be run with elevated privileges. The update addresses the vulnerability by adding additional permission validations to Internet Explorer.