CVE-2016-3120

Advisory lineage Upstream: 0 Downstream: 8
Modified
Published: 01 Aug 2016, 01:00
Last modified:05 Aug 2024, 23:47

Vulnerability Summary

Overall Risk (default)
medium
27/100
CVSS Score
6.5 MEDIUM
v3.0 (nvd)
EPSS Score
4.32% LOW
4% probability +1.06%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 Aug 2016, 01:00
Published
Vulnerability first disclosed
05 Aug 2024, 23:47
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.0•MEDIUM•Score: 6.5CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4AV:N/AC:L/Au:S/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 4.32%• Percentile: 89%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • mit•kerberos_5

    1.13 | 1.13.1 | 1.13.2 | 1.13.3 | 1.13.4 | 1.13.5 | 1.13.6 | 1.14 | 1.14.1 | 1.14.2

References (10)