Check Point Advisories

Nullsoft Winamp CAF File Processing Integer Overflow (CVE-2009-0186)

Check Point Reference: CPAI-2009-382
Date Published: 4 Nov 2009
Severity: Medium
Last Updated: Wednesday 04 November, 2009
Source:
Industry Reference:CVE-2009-0186
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Nullsoft Winamp is a multimedia player application that is capable of playing many formats of audio and video files. Winamp can play CD tracks, MP3 music files or MPEG video files as well as numerous other formats. It is also capable of reading CAF media file which has file extension .caf. A vulnerability exists in the CAF (Core Audio Format) file parsing component of Nullsoft Winamp. The vulnerability is caused by improper handling of CAF media file header. A remote attacker can exploit this vulnerability by enticing the user to open a crafted CAF file. Upon an unsuccessful attempt to inject and execute code via this vulnerability, the Winamp player may terminate. In an attack scenario where arbitrary code is injected and executed on the target machine, the behaviour of the target host is dependent on the intention of the malicious code. Any code injected into the vulnerable program would execute in the security context of the currently logged in user.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability

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

  1. In the IPS tab, click Protections and find the Nullsoft Winamp CAF File Processing Integer Overflow protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Media Player Enforcement Violation.
Attack Information:  Nullsoft Winamp CAF file processing integer overflow

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