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

Vulnerability

Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability

Vulnerability Description

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 PDF documents. 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.

CVE ID

CVE-2018-9950

Vendor

www.foxitsoftware.com

Product

• Foxit Reader 8.3.5.30351 and prior
• Foxit PhantomPDF 8.3.5.30351 and prior

Disclosure Timeline

1. 19 January 2018 – Reported to vendor
2. 20 April 2018 – Coordinated public release of advisory

Credits

Sudhakar Verma and Ashfaq Ansari – Project Srishti

Vendor Advisory

https://www.foxitsoftware.com/support/security-bulletins.php