VULNERABILITY INTELLIGENCE
CVE-2016-3120
CVSS score6.5 MEDIUM
EPSS probability4.62%
CISA KEVNot currently listed
Published2016-08-01
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- CWE-476: NULL Pointer Dereference