Check Point Advisories

Pidgin MSN MSNP2P Message Integer Overflow (CVE-2008-2927)

Check Point Reference: CPAI-2008-316
Date Published: 21 Dec 2009
Severity: Medium
Last Updated: Monday 21 December, 2009
Source:
Industry Reference:CVE-2008-2927
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Pidgin is a multi-protocol, multi-platform instant messaging client. The product supports numerous protocols such as AIM and ICQ, MSN and Yahoo!. Pidgin allows one user to log into multiple accounts on multiple IM networks simultaneously. There exists an integer overflow vulnerability in Pidgin instant messaging client. The vulnerability is due to an insufficient checking of file names offered for transfer. A remote authenticated attacker could exploit the vulnerability by offering to send a specially crafted MSNP2P message to the target user. Successful exploitation may allow arbitrary code execution in the context of the currently logged on user. In case of an attack where code injection is not successful, the Pidgin process will terminate abnormally. In case of a more sophisticated attack where code injection is successful, the behavior of the target host is entirely dependent on the intended function of the injected code. The code in such a case would execute within the security context of the Pidgin process.

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 Pidgin MSN MSNP2P Message 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:  Instant Messenger.
Attack Information:  Pidgin MSN MSNP2P message integer overflow

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