Multiple buffer overflows in libssh before 0.5.3 allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via unspecified vectors.Referenceshttp://www.mandriva.com/security/advisories?name=MDVSA-2012:175https://bugzilla.redhat.com/show_bug.cgi?id=871614http://www.ubuntu.com/usn/USN-1640-1http://lists.opensuse.org/opensuse-updates/2013-01/msg00021.htmlhttp://lists.opensuse.org/opensuse-updates/2012-12/msg00016.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2012-November/093313.htmlhttps://exchange.xforce.ibmcloud.com/vulnerabilities/80219http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00002.htmlhttp://www.openwall.com/lists/oss-security/2012/11/20/3http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093474.htmlhttp://www.securityfocus.com/bid/56604http://www.libssh.org/2012/11/20/libssh-0-5-3-security-release/