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[ GLSA 200808-07 ] ClamAV: Multiple Denials of Service
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PostPosted: Fri Aug 08, 2008 5:26 pm    Post subject: [ GLSA 200808-07 ] ClamAV: Multiple Denials of Service Reply with quote

Gentoo Linux Security Advisory

Title: ClamAV: Multiple Denials of Service (GLSA 200808-07)
Severity: low
Exploitable: remote
Date: August 08, 2008
Bug(s): #204340, #227351
ID: 200808-07

Synopsis

Multiple vulnerabilities in ClamAV may result in a Denial of Service.

Background

Clam AntiVirus is a free anti-virus toolkit for UNIX, designed especially for e-mail scanning on mail gateways.

Affected Packages

Package: app-antivirus/clamav
Vulnerable: < 0.93.3
Unaffected: >= 0.93.3
Architectures: All supported architectures


Description

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.

Resolution

All ClamAV users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.93.3"


References

CVE-2007-6595
CVE-2008-2713
CVE-2008-3215
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