CVE-2014-9421 Information

Description

The auth_gssapi_unwrap_data function in lib/rpc/auth_gssapi_misc.c in MIT Kerberos 5 (aka krb5) through 1.11.5 1.12.x through 1.12.2 and 1.13.x before 1.13.1 does not properly handle partial XDR deserialization which allows remote authenticated users to cause a denial of service (use-after-free and double free and daemon crash) or possibly execute arbitrary code via malformed XDR data as demonstrated by data sent to kadmind.

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151103.html http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151437.html http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00016.html http://lists.opensuse.org/opensuse-updates/2015-02/msg00044.html http://rhn.redhat.com/errata/RHSA-2015-0439.html http://rhn.redhat.com/errata/RHSA-2015-0794.html http://web.mit.edu/kerberos/advisories/2015-001-patch-r113.txt http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2015-001.txt http://www.debian.org/security/2015/dsa-3153 http://www.mandriva.com/security/advisories?name=MDVSA-2015:069 http://www.securityfocus.com/bid/72496 http://www.ubuntu.com/usn/USN-2498-1 https://github.com/krb5/krb5/commit/a197e92349a4aa2141b5dff12e9dd44c2a2166e3