National Vulnerability Database (NVD) National Vulnerability Database (CVE-2013-1415)

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Last updated: Mon May 20 10:42:42 EDT 2013

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Vulnerability Summary for CVE-2013-1415

Original release date:03/05/2013

Last revised:04/11/2013

Source: US-CERT/NIST

Overview

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.

Description

Per: http://cwe.mitre.org/data/definitions/476.html 'CWE-476: NULL Pointer Dereference'

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:7.1 (HIGH) (AV:N/AC:M/Au:N/C:N/I:N/A:C) (legend)

Impact Subscore: 6.9

Exploitability Subscore: 8.6

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: Medium

Authentication: Not required to exploit

Impact Type:Allows disruption of serviceUnknown

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External Source: CONFIRM

Name: https://github.com/krb5/krb5/commit/f249555301940c6df3a2cdda13b56b5674eebc2e

Type: Patch Information; Exploit

Hyperlink:https://github.com/krb5/krb5/commit/f249555301940c6df3a2cdda13b56b5674eebc2e

External Source: CONFIRM

Name: http://web.mit.edu/kerberos/www/krb5-1.11/

Hyperlink:http://web.mit.edu/kerberos/www/krb5-1.11/

External Source: CONFIRM

Name: http://web.mit.edu/kerberos/www/krb5-1.10/

Hyperlink:http://web.mit.edu/kerberos/www/krb5-1.10/

External Source: SUSE

Name: openSUSE-SU-2013:0523