Published advisory · ZDI-16-027

Foxit Reader Use-After-Free Remote Code Execution Vulnerability

Published Rocco Calvi
CVSS severity 6.8/ 10.0 · Medium AV:N/AC:M/Au:N/C:P/I:P/A:P

Vulnerability analysis

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader. 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 PDF files. The issue lies in assuming a buffer reference is still valid during a failure path. An attacker can leverage this vulnerability to execute code in the context of the current process.

Disclosure timeline

  1. Vulnerability reported to vendor
  2. Coordinated public release of advisory

References