Advisory Details

June 15th, 2017

Foxit Reader JPXDecode stream Out-Of-Bounds Write Remote Code Execution Vulnerability

ZDI-17-411
ZDI-CAN-4376

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 parsing of JPXDecode streams. The issue results from the lack of proper validation of user-supplied data which can result in a write past the end of an allocated object. An attacker can leverage this vulnerability to execute code under the context of the current process.

VENDOR RESPONSE 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
  • 2017-01-03 - Vulnerability reported to vendor
  • 2017-06-15 - Coordinated public release of advisory
CREDIT Steven Seeley of Source Incite
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