CVE-2016-3120

CVE Details

Release Date:	2016-07-19
Impact:	Low	What is this?

Description

The validate_as_request function in kdc_util.c in the Key DistributionCenter (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.

See more information about CVE-2016-3120 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	3.5
Vector String:	AV:N/AC:M/Au:S/C:N/I:N/A:P
Version:	2.0
Attack Vector:	Network
Attack Complexity:	Medium
Authentication:	Single
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	Partial

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (krb5)	ELSA-2016-2591	2016-11-09