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Adobe Acrobat Reader DC XFA PDEContent Use-After-Free Remote Code Execution Vulnerability

Reference ID: SSA-1708
Publication date: 08.08.2017
Severity: critical
Discovered by: Sebastian Apelt

Affected products/versions:
Adobe Acrobat Reader DC (2017.009.20058 and earlier versions)

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Acrobat Pro 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 XFA’s PDEContent object. The issue results from the lack of validating 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.

References:
ZDI-17-628
CVE-2017-11256
Adobe Security Bulletin APSB17-24