The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly handle character bitmaps it cannot read, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) and possibly execute arbitrary code via a crafted BDF font file.
advisories.mageia.org/MGASA-2015-0113.html
lists.fedoraproject.org/pipermail/package-announce/2015-March/152497.html
lists.fedoraproject.org/pipermail/package-announce/2015-March/152838.html
lists.opensuse.org/opensuse-security-announce/2015-03/msg00032.html
lists.opensuse.org/opensuse-security-announce/2015-04/msg00002.html
lists.opensuse.org/opensuse-security-announce/2015-04/msg00005.html
rhn.redhat.com/errata/RHSA-2015-1708.html
www.debian.org/security/2015/dsa-3194
www.mandriva.com/security/advisories?name=MDVSA-2015:145
www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
www.securityfocus.com/bid/73280
www.securitytracker.com/id/1031935
www.ubuntu.com/usn/USN-2536-1
www.x.org/wiki/Development/Security/Advisory-2015-03-17/
security.gentoo.org/glsa/201507-21