Advisory Details

October 8th, 2013

Microsoft Internet Explorer CLayout Use-After-Free Remote Code Execution Vulnerability

ZDI-13-236
ZDI-CAN-1930

CVE ID CVE-2013-3872
CVSS SCORE 7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
AFFECTED VENDORS Microsoft
AFFECTED PRODUCTS Internet Explorer
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 freeing of a CLayout object. The process can be forced to reuse a dangling pointer of the object resulting in a use-after-free condition. An attacker can leverage this situation to execute code under the context of the user running the browser.

ADDITIONAL DETAILS Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://technet.microsoft.com/en-us/security/bulletin/ms13-080
DISCLOSURE TIMELINE
  • 2013-07-23 - Vulnerability reported to vendor
  • 2013-10-08 - Coordinated public release of advisory
CREDIT Aniway.Anyway@gmail.com
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