Description
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
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://github.com/krb5/krb5/commit/a7886f0ed1277c69142b14a2c6629175a6331edc ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=1121877 ↗
- https://github.com/krb5/krb5/commit/524688ce87a15fc75f87efc8c039ba4c7d5c197b ↗
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95210 ↗
- http://aix.software.ibm.com/aix/efixes/security/nas_advisory1.asc ↗
- http://rhn.redhat.com/errata/RHSA-2015-0439.html ↗
- http://secunia.com/advisories/60448 ↗
- http://support.f5.com/kb/en-us/solutions/public/15000/500/sol15561.html ↗
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136360.html ↗
- http://secunia.com/advisories/61051 ↗
- http://www.debian.org/security/2014/dsa-3000 ↗
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=7970 ↗
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:165 ↗
- http://www.securityfocus.com/bid/69160 ↗
- http://www.osvdb.org/109389 ↗
- http://www.securitytracker.com/id/1030706 ↗
- http://secunia.com/advisories/60082 ↗
- http://advisories.mageia.org/MGASA-2014-0345.html ↗
- http://secunia.com/advisories/59102 ↗