CVE-2013-2020 Information

Description

Integer underflow in the cli_scanpe function in pe.c in ClamAV before 0.97.8 allows remote attackers to 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.

Reference

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