ClamAV RAR VM denial of service
| clamav-rarvm-dos (35367) |  Low Risk |
Description:
Clam AntiVirus is vulnerable to a denial of service, caused by a null pointer deference in the RAR VM component. By persuading a victim to scan a specially-crafted RAR archive file, a remote attacker could exploit this vulnerability to crash the application.
Note: Multiple vendor unrar implementations may be affected by this vulnerability.
Platforms Affected:
- Apple, Mac OS X Server 10.4.11
- Apple, Mac OS X Server 10.5.2
- Clam Anti-Virus, ClamAV prior to 0.91
- Debian, Debian Linux 4.0
- Gentoo, Linux
- Kolab, Kolab Server 2.0.4 and prior
- Kolab, Kolab Server 2.1.0 and prior
- Kolab, Kolab Server 2.2-beta1
- MandrakeSoft, Mandrake Linux 2007
- MandrakeSoft, Mandrake Linux 2007 X86_64
- MandrakeSoft, Mandrake Linux 2007.1 X86_64
- MandrakeSoft, Mandrake Linux 2007.1
- MandrakeSoft, Mandrake Linux 2008.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 4.0
- MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
- SuSE, SuSE Linux
Remedy:
Upgrade to the latest version of ClamAV (0.91 or later), available from the ClamAV Web site. See References.
For Kolab Server:
Refer to Kolab Security Issue 16 20070724 for patch, upgrade, or suggested workaround information. See References.
For Debian Linux (clamav):
Refer to DSA-1340-1 for patch, upgrade, or suggested workaround information. See References.
For Mandriva Linux (clamav):
Refer to MDKSA-2007:150 for patch, upgrade, or suggested workaround information. See References.
For SUSE Linux:
Refer to SUSE-SR:2007:015 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux (ClamAV):
Refer to GLSA 200708-04 for patch, upgrade, or suggested workaround information. See References.
For Mac OS X:
Apply Security Update 2008-002, available from the Apple Web site. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Denial of Service
References:
- Apple Web site, About Security Update 2008-002 at http://docs.info.apple.com/article.html?artnum=307562.
- ClamAV Bugzilla Bug 555, RAR Files Handling Denial of Service vulnerability at https://wwws.clamav.net/bugzilla/show_bug.cgi?id=555.
- Full-Disclosure Mailing List, Wed Jul 11 2007 - 10:32:53 CDT, Re: Advisory - Clam AntiVirus RAR File Handling Denial Of Service Vulnerability at http://archives.neohapsis.com/archives/fulldisclosure/2007-07/0218.html.
- Full-Disclosure Mailing List, Wed Jul 11 2007 - 10:32:53 CDT, Re: Advisory - Clam AntiVirus RAR File Handling Denial Of Service Vulnerability at http://archives.neohapsis.com/archives/fulldisclosure/2007-07/0218.html.
- Full-Disclosure Mailing List, Wed Jul 11 2007 - 10:46:56 CDT, Advisory - Clam AntiVirus RAR File Handling Denial Of Service Vulnerability. at http://archives.neohapsis.com/archives/fulldisclosure/2007-07/0214.html.
- Kolab Security Issue 16 20070724, Kolab Server, ClamAV denial of service at http://kolab.org/security/kolab-vendor-notice-16.txt.
- Metaeye Security Group Advisory 54, Clam AntiVirus RAR File Handling Denial Of Service Vulnerability at http://www.metaeye.org/advisories/54.
- BID-24866: Multiple Vendors RAR Handling Remote Null Pointer Dereference Vulnerability
- CVE-2007-3725: The RAR VM (unrarvm.c) in Clam Antivirus (ClamAV) before 0.91 allows user-assisted remote attackers to cause a denial of service (crash) via a crafted RAR archive, resulting in a NULL pointer dereference.
- DSA-1340: clamav -- null pointer dereference
- GLSA-200708-04: ClamAV: Denial of Service
- MDKSA-2007:150: Updated clamav packages fix vulnerabilities
- SA26038: ClamAV RAR Archive Processing Denial of Service Vulnerability
- SA26209: Kolab Server ClamAV RAR Archive Processing Denial of Service Vulnerability
- SA29420: Mac OS X Security Update Fixes Multiple Vulnerabilities
- SUSE-SR:2007:015: SUSE Security Summary Report
- VUPEN/ADV-2007-2509: ClamAV execute_standard_filter() RAR Archive Denial of Service Vulnerability
- VUPEN/ADV-2007-2643: Kolab Server Update Fixes ClamAV RAR File Denial of Service Vulnerability
- VUPEN/ADV-2008-0924: Apple Mac OS X Command Execution and Security Bypass Issues
Reported:
Jul 11, 2007
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