The acc_ctx_cont function in the SPNEGO acceptor in lib/gssapi/spnego/spnego_mech.c in...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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
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CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.