TippingPoint Zero Day Initiative

Foxit Reader GIF Conversion Heap Corruption Remote Code Execution Vulnerability

ZDI-15-395: August 20th, 2015

CVSS Score

Affected Vendors

Affected Products

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 conversion of GIF files into PDF format. By providing a malformed GIF, an attacker can cause heap corruption. This could allow an attacker to execute arbitrary code under the context of the Reader process.

Vendor Response

Foxit has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2015-04-24 - Vulnerability reported to vendor
    2015-08-20 - Coordinated public release of advisory


This vulnerability was discovered by:
    Steven Seeley of Source Incite