Foxit Reader FlateDecode Heap Buffer Overflow Remote Code Execution Vulnerability

December 16th, 2015
ZDI-15-644 ZDI-CAN-3097

CVE ID

CVSS Score

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

Affected Vendors

Foxit

Affected Products

Foxit 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 FlateDecode. A specially crafted PDF with a specific FlateDecode length can force a heap buffer overflow condition. An attacker can leverage this vulnerability to execute arbitrary 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

  • 2015-09-24 - Vulnerability reported to vendor
  • 2015-12-16 - Coordinated public release of advisory

Credit

kdot

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