CVE-2011-0284: Mit Kerberos 5

High severity, CVSS 7.6. EPSS: 8.3% chance of exploitation in the next 30 days.

Double free vulnerability in the prepare_error_as function in do_as_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 through 1.9, when the PKINIT feature is enabled, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via an e_data field containing typed data.

Affected products

• Mit Kerberos 5: version 1.7 only; version 1.7.1 only; version 1.8 only; version 1.8.1 only; version 1.8.2 only; version 1.8.3 only; …

Published 2011-03-20. Last modified 2026-06-16.