Advisory Details

March 9th, 2017

Foxit Reader Font Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-17-134
ZDI-CAN-4364

CVE ID
CVSS SCORE 4.3, (AV:N/AC:M/Au:N/C:P/I:N/A:N)
AFFECTED VENDORS Foxit
AFFECTED PRODUCTS Reader
VULNERABILITY DETAILS


This vulnerability allows remote attackers to disclose sensitive information 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 fonts in PDF files. The issue results from the lack of proper validation of user-supplied data which can result in a read past the end of an allocated object. An attacker can leverage this in conjunction with other vulnerabilities to execute code in 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
  • 2017-01-03 - Vulnerability reported to vendor
  • 2017-03-09 - Coordinated public release of advisory
CREDIT Ashfaq Ansari - Project Srishti
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