Microsoft Internet Explorer CImgElement Use-After-Free Remote Code Execution Vulnerability
Vulnerability Details
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 usage of CImgElement objects. By manipulating a document's elements, an attacker can cause a CImgElement object in memory to be reused after it has been freed. An attacker can leverage this vulnerability to execute arbitrary code under the context of the current process.
Additional Details
Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://technet.microsoft.com/library/security/ms15-094
Disclosure Timeline
- 2015-06-30 - Vulnerability reported to vendor
- 2015-09-08 - Coordinated public release of advisory
Credit
B6BEB4D5E828CF0CCB47BB24AAC22515
