CVE Vulnerabilities

CVE-2013-1415

NULL Pointer Dereference

Published: Mar 05, 2013 | Modified: Feb 02, 2021
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
5 MEDIUM
AV:N/AC:L/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

The pkinit_check_kdc_pkid function in plugins/preauth/pkinit/pkinit_crypto_openssl.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 and 1.11.x before 1.11.1 does not properly handle errors during extraction of fields from an X.509 certificate, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed KRB5_PADATA_PK_AS_REQ AS-REQ 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 * 1.10.4 (excluding)
Kerberos_5 Mit 1.11 (including) 1.11 (including)
Red Hat Enterprise Linux 6 RedHat krb5-0:1.10.3-10.el6_4.1 *
Krb5 Ubuntu hardy *
Krb5 Ubuntu lucid *
Krb5 Ubuntu oneiric *
Krb5 Ubuntu precise *
Krb5 Ubuntu quantal *
Krb5 Ubuntu upstream *

Potential Mitigations

References