Advisory Details

October 11th, 2016

Adobe Reader DC XSLT Parsing sort Use-After-Free Remote Code Execution Vulnerability

ZDI-16-563
ZDI-CAN-3961

CVE ID CVE-2016-6969
CVSS SCORE 6.8, (AV:N/AC:M/Au:N/C:P/I:P/A:P)
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Acrobat Reader DC
VULNERABILITY DETAILS


This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Reader DC. 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 AXSLE library. The process does not properly validate the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code under the context of the current process.

VENDOR RESPONSE Adobe has issued an update to correct this vulnerability. More details can be found at:
https://helpx.adobe.com/security/products/acrobat/apsb16-33.html
DISCLOSURE TIMELINE
  • 2016-08-30 - Vulnerability reported to vendor
  • 2016-10-11 - Coordinated public release of advisory
CREDIT Wei Lei and Liu Yang of Nanyang Technological University.
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