Public Date:
1031499: CVE-2013-6800 krb5: KDC remote DoS (NULL pointer dereference and daemon crash)
It was found that if a KDC served multiple realms, certain requests could cause the setup_server_realm() function to dereference a NULL pointer. A remote, unauthenticated attacker could use this flaw to crash the KDC using a specially crafted request.

Find out more about CVE-2013-6800 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 4.3
Base Metrics AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 5 (krb5) RHSA-2014:1245 2014-09-16
Red Hat Enterprise Linux 6 (krb5) RHSA-2014:1389 2014-10-13

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 krb5 Not affected
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.
Last Modified