Check Point Advisories

Novell GroupWise Internet Agent RRULE Parsing Buffer Overflow (CVE-2010-4326; CVE-2011-2662; CVE-2011-2663)

Vulnerability
Protection

Check Point Reference:	CPAI-2011-070
Date Published:	9 Mar 2011
Severity:	Critical
Last Updated:	Sunday 11 November, 2012
Source:
Industry Reference:	CVE-2010-4326 CVE-2011-2662 CVE-2011-2663
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Novell GroupWise is a client-server collaborative software and email system provided by Novell. Novell GroupWise Internet Agent is a component of Novell GroupWise and provides email services, supporting SMTP, POP, and IMAP protocols. A buffer overflow vulnerability has been reported in Novell GroupWise Internet Agent (GWIA). The vulnerability is due to a buffer overflow in the Novell GroupWise Internet Agent when parsing a RRULE variable of a VCALENDAR inside an email. A remote attacker could exploit this issue by sending a malicious email to the target. Successful exploitation of this vulnerability could result in arbitrary code execution on an affected system and may terminate the vulnerable application abnormally.

Protection Overview

This protection detects and blocks malicious email messages sent to the Novell GroupWise Internet Agent.

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 Novell GroupWise Internet Agent RRULE Parsing Buffer 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: SMTP Protection Violation.
Attack Information: Novell GroupWise Internet Agent RRULE parsing buffer overflow