CVE-2013-1417: Mit Kerberos 5

Low severity, CVSS 3.5. EPSS: 1.9% chance of exploitation in the next 30 days.

do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.11 before 1.11.4, when a single-component realm name is used, allows remote authenticated users to cause a denial of service (daemon crash) via a TGS-REQ request that triggers an attempted cross-realm referral for a host-based service principal.

Affected products

• Mit Kerberos 5: version 1.11 only; version 1.11.1 only; version 1.11.2 only; version 1.11.3 only

Published 2013-11-20. Last modified 2026-06-16.