This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2016-3120 →

DEBIAN-CVE-2016-3120

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...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 krb5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.3+dfsg-1"}]}]

Debian:13 krb5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.3+dfsg-1"}]}]

Debian:14 krb5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.14.3+dfsg-1"}]}]

References

advisory security-tracker.debian.org