Foxit Reader ConvertToPDF GIF Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

June 29th, 2016
ZDI-16-400 ZDI-CAN-3806

CVE ID

CVSS Score

6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected Vendors

Foxit

Affected Products

Reader

Vulnerability Details


This vulnerability allows remote attackers to execute arbitrary code on vulnerable 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 ConvertToPDF plugin. A crafted GIF image can trigger a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code under the context of the current process.

Additional Details

Foxit has issued an update to correct this vulnerability. More details can be found at:
https://www.foxitsoftware.com/support/security-bulletins.php

Disclosure Timeline

  • 2016-06-14 - Vulnerability reported to vendor
  • 2016-06-29 - Coordinated public release of advisory

Credit

kdot

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