CVE-2014-4344

Impact

The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in MIT Kerberos 5 (aka krb5) 1.5.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty continuation token at a certain point during a SPNEGO negotiation.

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• http://advisories.mageia.org/MGASA-2014-0345.html
• http://aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc
• http://krbdev.mit.edu/rt/Ticket/Display.html?id=7970
• http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136360.html
• http://rhn.redhat.com/errata/RHSA-2015-0439.html
• http://secunia.com/advisories/59102
• http://secunia.com/advisories/60082
• http://secunia.com/advisories/60448
• http://secunia.com/advisories/61051
• http://support.f5.com/kb/en-us/solutions/public/15000/500/sol15561.html
• http://www.debian.org/security/2014/dsa-3000
• http://www.mandriva.com/security/advisories?name=MDVSA-2014:165
• http://www.osvdb.org/109389
• http://www.securityfocus.com/bid/69160
• http://www.securitytracker.com/id/1030706
• https://bugzilla.redhat.com/show_bug.cgi?id=1121877
• https://exchange.xforce.ibmcloud.com/vulnerabilities/95210
• https://github.com/krb5/krb5/commit/524688ce87a15fc75f87efc8c039ba4c7d5c197b
• https://github.com/krb5/krb5/commit/a7886f0ed1277c69142b14a2c6629175a6331edc
• http://advisories.mageia.org/MGASA-2014-0345.html
• http://aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc
• http://krbdev.mit.edu/rt/Ticket/Display.html?id=7970
• http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136360.html
• http://rhn.redhat.com/errata/RHSA-2015-0439.html
• http://secunia.com/advisories/59102