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.
*CVSS:
| Base Score: | 2.8 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 2.1 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
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.
References:
- Apple Web site: About Security Update 2008-002.
- ClamAV Bugzilla Bug 555: RAR Files Handling Denial of Service vulnerability.
- Full-Disclosure Mailing List, Wed Jul 11 2007 - 10:32:53 CDT: Re: Advisory - Clam AntiVirus RAR File Handling Denial Of Service Vulnerability.
- Full-Disclosure Mailing List, Wed Jul 11 2007 - 10:32:53 CDT: Re: Advisory - Clam AntiVirus RAR File Handling Denial Of Service Vulnerability.
- Full-Disclosure Mailing List, Wed Jul 11 2007 - 10:46:56 CDT: Advisory - Clam AntiVirus RAR File Handling Denial Of Service Vulnerability..
- Kolab Security Issue 16 20070724: Kolab Server, ClamAV denial of service.
- Metaeye Security Group Advisory 54: Clam AntiVirus RAR File Handling Denial Of Service Vulnerability.
- 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
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
- Kolab Kolab Server 2.1.0
- 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 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 4.0
- SUSE SuSE Linux
Reported:
Jul 11, 2007
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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 IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.