CVE-2016-3120

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CVSS 3.0

6.5 medium

EPSS

5%p91

Published

Aug 1, 2016 (Aug 1, 2016)

Modified

Jun 17, 2026

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.

Vendors: mit
Products: kerberos 5
Weakness: CWE-476
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (4.6%)

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