CVE-2012-1016

The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.

• CWE-476

• http://krbdev.mit.edu/rt/Ticket/Display.html?id=7527Vendor Advisory
• http://secunia.com/advisories/55040Third Party Advisory
• http://web.mit.edu/kerberos/www/krb5-1.10/Release Notes, Vendor Advisory
• https://github.com/krb5/krb5/commit/db64ca25d661a47b996b4e2645998b5d7f0eb52cPatch, Third Party Advisory
• http://krbdev.mit.edu/rt/Ticket/Display.html?id=7527Vendor Advisory
• http://secunia.com/advisories/55040Third Party Advisory
• http://web.mit.edu/kerberos/www/krb5-1.10/Release Notes, Vendor Advisory
• https://github.com/krb5/krb5/commit/db64ca25d661a47b996b4e2645998b5d7f0eb52cPatch, Third Party Advisory

Published

Mar 5, 2013

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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