Advisory Details

April 20th, 2018

Foxit Reader ConvertToPDF_x86 JPG Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

ZDI-18-356
ZDI-CAN-5755

CVE ID CVE-2018-9972
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 ConvertToPDF_x86.dll. 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 arbitrary code in 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
  • 2018-03-06 - Vulnerability reported to vendor
  • 2018-04-20 - Coordinated public release of advisory
  • 2018-04-20 - Advisory Updated
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