SB2013051404 - Input validation error in ClamAV

Description

This security bulletin contains information about 1 security vulnerability.

1) Input validation error (CVE-ID: CVE-2013-2020)

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (crash) via a skewed offset larger than the size of the PE section in a UPX packed executable, which triggers an out-of-bounds read.

Remediation

Install update from vendor's website.

References

• http://blog.clamav.net/2013/04/clamav-0978-has-been-released.html
• http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html
• http://lists.apple.com/archives/security-announce/2013/Sep/msg00004.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109514.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109639.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-June/109652.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105575.html
• http://lists.opensuse.org/opensuse-security-announce/2014-12/msg00006.html
• http://lists.opensuse.org/opensuse-updates/2013-06/msg00018.html
• http://lists.opensuse.org/opensuse-updates/2013-06/msg00020.html
• http://secunia.com/advisories/53150
• http://secunia.com/advisories/53182
• http://support.apple.com/kb/HT5880
• http://support.apple.com/kb/HT5892
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:159
• http://www.openwall.com/lists/oss-security/2013/04/25/2
• http://www.openwall.com/lists/oss-security/2013/04/29/20
• http://www.securityfocus.com/bid/59434
• http://www.ubuntu.com/usn/USN-1816-1
• https://bugzilla.clamav.net/show_bug.cgi?id=7055
• https://github.com/vrtadmin/clamav-devel/commit/270e368b99e93aa5447d46c797c92c3f9f39f375