Advisory Details

May 10th, 2016

Adobe Reader DC ExtendScript ScriptProxy Use-After-Free Remote Code Execution Vulnerability

ZDI-16-307
ZDI-CAN-3485

CVE ID CVE-2016-1059
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 handling of ScriptProxy objects within ExtendScript. A specially crafted PDF can force a dangling pointer 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 Adobe has issued an update to correct this vulnerability. More details can be found at:
https://helpx.adobe.com/security/products/acrobat/apsb16-14.html
DISCLOSURE TIMELINE
  • 2015-12-22 - Vulnerability reported to vendor
  • 2016-05-10 - Coordinated public release of advisory
CREDIT AbdulAziz Hariri - HPE Zero Day Initiative
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