Clam AntiVirus and Kolab Server RAR denial of service

clamav-rar-dos (34778) The risk level is classified as LowLow Risk

Description:

Clam AntiVirus (ClamAV) and Kolab Server are vulnerable to a denial of service. By creating a specially-crafted RAR file, a remote attacker could exploit this vulnerability to cause a denial of service, if the attacker could persuade the victim to scan the malicious file.

Platforms Affected:

  • Clam Anti-Virus, ClamAV 0.90.2 and prior
  • Debian, Debian Linux 3.1
  • Debian, Debian Linux 4.0
  • Gentoo, Linux
  • Kolab, Kolab Server 2.0.4 and prior
  • Kolab, Kolab Server 2.1.0 and prior
  • MandrakeSoft, Mandrake Linux 2007
  • MandrakeSoft, Mandrake Linux 2007 X86_64
  • MandrakeSoft, Mandrake Linux 2007.1
  • MandrakeSoft, Mandrake Linux 2007.1 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0
  • MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 4.0

Remedy:

For Clam AntiVirus:
Upgrade to the latest version of Clam AntiVirus (0.90.3 or later), available from the Clam AntiVirus Web site. See References.

For Kolab Server:
Upgrade to the latest version of Kolab Server (2.1.0 or later) and Clam AntiVirus (0.90.3 or later), available from the Clam AntiVirus and Kolab Server Web site. See References.

For Gentoo Linux (clamav):
Refer to GLSA 200706-05 for patch, upgrade, or suggested workaround information. See References.

For Debian/GNU Linux (clamav):
Refer to DSA-1320-1 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Denial of Service

References:

  • Clam AntiVirus Web site, Clam AntiVirus at http://www.clamav.net/.
  • Kolab Security Issue 15 20070601, denial of service, insecure temporary files at http://kolab.org/security/kolab-vendor-notice-15.txt.
  • Kolab Server Web site, Kolab Groupware:: Home at http://kolab.org/.
  • BID-24289: Clam AntiVirus ClamAV RAR Handling Remote Denial Of Service Vulnerability
  • CVE-2007-3123: unrar.c in libclamav in ClamAV before 0.90.3 and 0.91 before 0.91rc1 allows remote attackers to cause a denial of service (core dump) via a crafted RAR file with a modified vm_codesize value, which triggers a heap-based buffer overflow.
  • DSA-1320: clamav -- several vulnerabilities
  • GLSA-200706-05: ClamAV: Multiple Denials of Service
  • MDKSA-2007:115: Updated clamav packages fix vulnerabilities
  • SA25525: Kolab Server ClamAV Denial of Service

Reported:

May 30, 2007

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

Copyright (c) 1994-2008 Internet Security Systems, Inc. All rights reserved worldwide.

For corrections or additions please email xforce@iss.net

Return to the main page