CVE Vulnerabilities

CVE-2013-1418

NULL Pointer Dereference

Published: Nov 18, 2013 | Modified: Feb 02, 2021
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
4.3 MODERATE
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V3
Ubuntu
MEDIUM

The setup_server_realm function in main.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.7, when multiple realms are configured, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Kerberos_5 Mit * 1.10.7 (excluding)
Red Hat Enterprise Linux 5 RedHat krb5-0:1.6.1-78.el5 *
Red Hat Enterprise Linux 6 RedHat krb5-0:1.10.3-33.el6 *
Krb5 Ubuntu lucid *
Krb5 Ubuntu precise *
Krb5 Ubuntu quantal *
Krb5 Ubuntu raring *
Krb5 Ubuntu saucy *
Krb5 Ubuntu upstream *

Potential Mitigations

References