The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-1265-1 krb5 security update
EUVD EUVD EUVD-2016-4173 The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T23:47:57.164Z

Reserved: 2016-03-11T00:00:00

Link: CVE-2016-3120

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2016-08-01T02:59:12.370

Modified: 2025-04-12T10:46:40.837

Link: CVE-2016-3120

cve-icon Redhat

Severity : Low

Publid Date: 2016-07-19T00:00:00Z

Links: CVE-2016-3120 - Bugzilla

cve-icon OpenCVE Enrichment

No data.