libclamav/petite.c in ClamAV before 0.93.3 allows remote attackers to cause a denial of service via a malformed Petite file that triggers an out-of-bounds memory access. NOTE: this issue exists because of an incomplete fix for CVE-2008-2713.

An incomplete fix for CVE-2008-2713 resulted in remote attackers being able to cause a denial of service via a malformed Petite file that triggered an out-of-bounds memory access (CVE-2008-3215). This issue is corrected with the 0.93.3 release which is being provided.

The remote host is running a version of Mac OS X 10.5 that is older than version 10.5.5.  Mac OS X 10.5.5 contains security fixes for a number of programs.

The remote host is running a version of Mac OS X 10.5.x that is prior to 10.5.5. 

Mac OS X 10.5.5 contains security fixes for a number of programs.

The remote host is running a version of Mac OS X 10.4 that does not have the security update 2008-006 applied. 

This update contains security fixes for a number of programs.

The remote host is affected by the vulnerability described in GLSA-200808-07 (ClamAV: Multiple Denials of Service)

    Damian Put has discovered an out-of-bounds memory access while     processing Petite files (CVE-2008-2713, CVE-2008-3215). Also, please     note that the 0.93 ClamAV branch fixes the first of the two attack     vectors of CVE-2007-6595 concerning an insecure creation of temporary     files vulnerability. The sigtool attack vector seems still unfixed.
  Impact :

    A remote attacker could entice a user or automated system to scan a     specially crafted Petite file, possibly resulting in a Denial of     Service (daemon crash). Also, the insecure creation of temporary files     vulnerability can be triggered by a local user to perform a symlink     attack.
  Workaround :

    There is no known workaround at this time.

Damian Put discovered a vulnerability in the ClamAV anti-virus toolkit's parsing of Petite-packed Win32 executables. The weakness leads to an invalid memory access, and could enable an attacker to crash clamav by supplying a maliciously crafted Petite-compressed binary for scanning. In some configurations, such as when clamav is used in combination with mail servers, this could cause a system to 'fail open', facilitating a follow-on viral attack.

A previous version of this advisory referenced packages that were built incorrectly and omitted the intended correction. This issue was fixed in packages referenced by the -2 revision of the advisory.

The Common Vulnerabilities and Exposures project identifies this weakness as CVE-2008-2713 and CVE-2008-3215.

Backport upstream fix for CVE-2008-2713 (0.93.1) and fix for incomplete fix of CVE-2008-2713 (0.93.2).

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Update to upstream version 0.93.3, fixing previously incomplete fix for CVE-2008-2713.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
38014	Mandriva Linux Security Advisory : clamav (MDVSA-2008:166)	Nessus	Mandriva Local Security Checks	medium
4682	Mac OS X < 10.5.5 Multiple Vulnerabilities	Nessus Network Monitor	Generic	critical
34211	Mac OS X 10.5.x < 10.5.5 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	critical
34210	Mac OS X Multiple Vulnerabilities (Security Update 2008-006)	Nessus	MacOS X Local Security Checks	critical
33853	GLSA-200808-07 : ClamAV: Multiple Denials of Service	Nessus	Gentoo Local Security Checks	medium
33568	Debian DSA-1616-2 : clamav - denial of service	Nessus	Debian Local Security Checks	medium
33537	Fedora 8 : clamav-0.92.1-3.fc8 (2008-6422)	Nessus	Fedora Local Security Checks	medium
33536	Fedora 9 : clamav-0.93.3-1.fc9 (2008-6338)	Nessus	Fedora Local Security Checks	medium

Detections

Analytics

CVE-2008-3215

medium

Tenable Plugins

medium

critical

critical

critical

medium

medium

medium

medium