Microsoft Internet Explorer textContent Heap Buffer Overflow Remote Code Execution Vulnerability

2014-06-11T00:00:00
ID ZDI-14-185
Type zdi
Reporter Stephen Fewer of Harmony Security (www.harmonysecurity.com)
Modified 2014-11-09T00:00:00

Description

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the handling of the textContent element property. The issue lies in the failure to properly calculate the length of the buffer during a call to memcpy. An attacker can leverage this vulnerability to execute code under the context of the current process.