Description
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.
Published: 2016-08-01
Score: 6.5 Medium
EPSS: 3.3% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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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.
History

No history.

Subscriptions

Mit Kerberos 5
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

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

Reserved: 2016-03-11T00:00:00.000Z

Link: CVE-2016-3120

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

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

Modified: 2026-05-06T22:30:45.220

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.

Weaknesses