From klieber@gentoo.org Thu Apr 8 07:41:30 2004 From: Kurt Lieber To: gentoo-announce@lists.gentoo.org Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com, security-alerts@linuxsecurity.com, gentoo-core@lists.gentoo.org Date: Wed, 7 Apr 2004 14:12:32 -0400 Subject: [ GLSA 200404-07 ] ClamAV RAR Archive Remote Denial Of Service Vulnerability - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200404-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: ClamAV RAR Archive Remote Denial Of Service Vulnerability Date: April 07, 2004 Bugs: #45357 ID: 200404-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== ClamAV is vulnerable to a denial of service attack when processing certain RAR archives. Background ========== From http://www.clamav.net/ : "Clam AntiVirus is a GPL anti-virus toolkit for UNIX. The main purpose of this software is the integration with mail servers (attachment scanning). The package provides a flexible and scalable multi-threaded daemon, a command line scanner, and a tool for automatic updating via Internet. The programs are based on a shared library distributed with the Clam AntiVirus package, which you can use with your own software. Most importantly, the virus database is kept up to date." Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- net-mail/clamav <= 0.68 >= 0.68.1 Description =========== Certain types of RAR archives, including those created by variants of the W32.Beagle.A@mm worm, may cause clamav to crash when it attempts to process them. Impact ====== This vulnerability causes a Denial of Service in the clamav process. Depending on configuration, this may cause dependent services such as mail to fail as well. Workaround ========== A workaround is not currently known for this issue. All users are advised to upgrade to the latest version of the affected package. Resolution ========== ClamAV users should upgrade to version 0.68.1 or later: # emerge sync # emerge -pv ">=net-mail/clamav-0.68.1" # emerge ">=net-mail/clamav-0.68.1" Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. [ Part 2, Application/PGP-SIGNATURE 196bytes. ] [ Unable to print this part. ]