Clam AntiVirus CAB file denial of service
| clamav-cabfile-dos (32531) |  Low Risk |
Description:
Clam AntiVirus is vulnerable to a denial of service, caused by a file descriptor leak. By sending multiple specially-crafted CAB files with a record length of zero, a remote attacker could use up all available file descriptors, which would stop the application from scanning archives.
Platforms Affected:
- Apple, Mac OS X Server 10.4.11
- Clam Anti-Virus, ClamAV prior to 0.90
- Debian, Debian Linux 3.1
- Gentoo, Linux
- Mandriva, Corporate Server 3.0 X86_64
- Mandriva, Corporate Server 3.0
- Mandriva, Corporate Server 4.0 X86_64
- Mandriva, Corporate Server 4.0
- Mandriva, Linux 2006 X86_64
- Mandriva, Linux 2006
- Mandriva, Linux 2007
- Mandriva, Linux 2007 X86_64
- Novell, Linux POS 9
- Novell, Open Enterprise Server
- Novell, Open Enterprise Server
- Novell, OpenSUSE 10.2
- SuSE, OpenSuSE 10.2
- SuSE, SuSE Linux 10.0
- SuSE, SuSE Linux 10.1
- SuSE, SuSE Linux 9.3
- SuSE, SuSE SLED 10
- SuSE, SuSE SLES 10
- SuSE, SuSE SLES 9
Remedy:
Upgrade to the latest version of Clam AntiVirus (0.90 or later), available from SourceForge.net. See References.
For Gentoo Linux (clamav):
Refer to GLSA 200703-03 for patch, upgrade, or suggested workaround information. See References.
For Mandriva Linux (clamav):
Refer to MDKSA-2007:043 for patch, upgrade, or suggested workaround information. See References.
For Debian Linux (clamav):
Refer to DSA-1263-1 for patch, upgrade, or suggested workaround information. See References.
For SUSE Linux (clamav):
Refer to SUSE-SA:2007:017 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.
- iDefense Labs PUBLIC ADVISORY: 02.15.07, Multiple Vendor ClamAV CAB File Denial of Service Vulnerability at http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=475.
- SourceForge.net, Clam AntiVirus at http://sourceforge.net/projects/clamav/.
- BID-22580: ClamAV CAB File Remote Denial of Service Vulnerability
- CVE-2007-0897: Clam AntiVirus ClamAV before 0.90 does not close open file descriptors under certain conditions, which allows remote attackers to cause a denial of service (file descriptor consumption and failed scans) via CAB archives with a cabinet header record length of zero, which causes a function to return without closing a file descriptor.
- DSA-1263: clamav -- several vulnerabilities
- FrSIRT/ADV-2007-0623: ClamAV MIME Header Directory Traversal and CAB File Denial of Service Vulnerabilities
- FrSIRT/ADV-2008-0924: Apple Mac OS X Command Execution and Security Bypass Issues
- GLSA-200703-03: ClamAV: Denial of Service
- SA24187: ClamAV MIME Header Handling and CAB File Processing Vulnerabilities
- SA29420: Mac OS X Security Update Fixes Multiple Vulnerabilities
- SECTRACK ID: 1017659: Clam AntiVirus CAB File Descriptor Leak Lets Remote Users Deny Service
- SUSE-SA:2007:017: clamav 0.90 update
Reported:
Feb 15, 2007
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