CVE ID:	CVE-2012-4561
Description:	The (1) publickey_make_dss, (2) publickey_make_rsa, (3) signature_from_string, (4) ssh_do_sign, and (5) ssh_sign_session_id functions in keys.c in libssh before 0.5.3 free "an invalid pointer on an error path," which might allow remote attackers to cause a denial of service (crash) via unspecified vectors.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2012-4561 BugTraq ID: 56604 http://www.securityfocus.com/bid/56604 Debian Security Information: DSA-2577 (Google Search) http://www.debian.org/security/2012/dsa-2577 http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093313.html http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093474.html http://www.mandriva.com/security/advisories?name=MDVSA-2012:175 https://bugzilla.redhat.com/show_bug.cgi?id=871617 http://www.openwall.com/lists/oss-security/2012/11/20/3 SuSE Security Announcement: openSUSE-SU-2012:1620 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00002.html SuSE Security Announcement: openSUSE-SU-2012:1622 (Google Search) http://lists.opensuse.org/opensuse-updates/2012-12/msg00016.html SuSE Security Announcement: openSUSE-SU-2013:0130 (Google Search) http://lists.opensuse.org/opensuse-updates/2013-01/msg00021.html http://www.ubuntu.com/usn/USN-1640-1 XForce ISS Database: libssh-multiple-dos(80220) https://exchange.xforce.ibmcloud.com/vulnerabilities/80220