Check Point Advisories

libsndfile PAF File Integer Overflow (CVE-2011-2696)

Vulnerability
Protection

Check Point Reference:	CPAI-2011-524
Date Published:	15 Nov 2011
Severity:	Medium
Last Updated:	Tuesday 15 November, 2011
Source:
Industry Reference:	CVE-2011-2696
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A heap buffer overflow vulnerability has been reported in libsndfile C library. The vulnerability is due to an error in the Paris Audio Format (PAF) processing code of the libsndfile library. A remote attacker could exploit this vulnerability by enticing a target user to download and open a specially crafted PAF file. Successful exploitation could lead to an arbitrary code execution or cause a denial of service condition on the system.

Protection Overview

This protection will detect and block attempts to transfer a malicious PAF file.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the libsndfile PAF File Integer Overflow protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Media Player Enforcement Violation.
Attack Information: libsndfile PAF file integer overflow