Zero-Day Advisory

Fortinet Discovers Foxit PDF Toolkit Memory Corruption Vulnerability II

Summary

Fortinet's FortiGuard Labs has discovered a memory corruption vulnerability in Foxit PDF Toolkit.


Foxit PDF Toolkit consists of a suite of modules which can help better handle tasks associated with large batches of pdf documents, such as:

. Adding text-based or image-based watermarks to documents

. Converting Microsoft Office documents to PDF and vice-versa

. Adding headers and footers to PDF files

. Optimizing pdf documents

. Protecting documents with Rights Management Services

. Converting image files to PDF


A memory corruption vulnerability has been discovered in Foxit PDF Toolkit. The vulnerability can be triggered by a specifically crafted PDF file which causes an out of bounds memory access, due to improper bounds checking. Attackers could exploit the vulnerability to execute arbitrary code within the context of the application.


Solutions

FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

Foxit.PDF.Toolkit.Memory.Corruption
Released Mar 21, 2017

Users should apply the solution provided by Foxit.

Additional Information

Fortinet reported the vulnerability to Foxit Software on Mar. 10, 2017.

Foxit Software confirmed the vulnerability on Mar. 20, 2017.

Foxit Software patched the vulnerability on Apr. 07, 2017.

Acknowledgement

This vulnerability was discovered by Kushal Arvind Shah of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.