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Last updated: 2/14/2016 12:56:31 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2013-1418

Original release date: 11/17/2013
Last revised: 01/27/2014


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.


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


CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 MEDIUM
Impact Subscore: 2.9
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 service

References to Advisories, Solutions, and Tools

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External Source: CONFIRM
Name: http://krbdev.mit.edu/rt/Ticket/Display.html?id=7757
Type: Advisory
External Source: SUSE
Name: openSUSE-SU-2013:1751
External Source: SUSE
Name: openSUSE-SU-2013:1833
External Source: SUSE
Name: openSUSE-SU-2013:1738
External Source: CONFIRM
Name: http://web.mit.edu/kerberos/krb5-1.11/README-1.11.4.txt
External Source: CONFIRM
Name: https://github.com/krb5/krb5/commit/c2ccf4197f697c4ff143b8a786acdd875e70a89d
Type: Patch Information
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=1026942
External Source: CONFIRM
Name: http://web.mit.edu/kerberos/krb5-1.10/README-1.10.7.txt
External Source: CONFIRM
Name: http://advisories.mageia.org/MGASA-2013-0335.html

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:mit:kerberos:5-1.2
* cpe:/a:mit:kerberos:5-1.2.1
* cpe:/a:mit:kerberos:5-1.2.2
* cpe:/a:mit:kerberos:5-1.2.3
* cpe:/a:mit:kerberos:5-1.2.4
* cpe:/a:mit:kerberos:5-1.2.5
* cpe:/a:mit:kerberos:5-1.2.6
* cpe:/a:mit:kerberos:5-1.2.7
* cpe:/a:mit:kerberos:5-1.2.8
* cpe:/a:mit:kerberos:5-1.3
* cpe:/a:mit:kerberos:5-1.3:alpha1
* cpe:/a:mit:kerberos:5-1.3.1
* cpe:/a:mit:kerberos:5-1.3.2
* cpe:/a:mit:kerberos:5-1.3.3
* cpe:/a:mit:kerberos:5-1.3.4
* cpe:/a:mit:kerberos:5-1.3.5
* cpe:/a:mit:kerberos:5-1.3.6
* cpe:/a:mit:kerberos:5-1.4
* cpe:/a:mit:kerberos:5-1.4.1
* cpe:/a:mit:kerberos:5-1.4.2
* cpe:/a:mit:kerberos:5-1.4.3
* cpe:/a:mit:kerberos:5-1.4.4
* cpe:/a:mit:kerberos:5-1.5
* cpe:/a:mit:kerberos:5-1.5.1
* cpe:/a:mit:kerberos:5-1.5.2
* cpe:/a:mit:kerberos:5-1.5.3
* cpe:/a:mit:kerberos:5-1.6
* cpe:/a:mit:kerberos:5-1.6.1
* cpe:/a:mit:kerberos:5-1.6.2
* cpe:/a:mit:kerberos:5-1.7
* cpe:/a:mit:kerberos:5-1.7.1
* cpe:/a:mit:kerberos:5-1.8
* cpe:/a:mit:kerberos:5-1.8.1
* cpe:/a:mit:kerberos:5-1.8.2
* cpe:/a:mit:kerberos:5-1.8.3
* cpe:/a:mit:kerberos:5-1.8.4
* cpe:/a:mit:kerberos:5-1.8.5
* cpe:/a:mit:kerberos:5-1.8.6
* cpe:/a:mit:kerberos:5-1.9
* cpe:/a:mit:kerberos:5-1.9.1
* cpe:/a:mit:kerberos:5-1.9.2
* cpe:/a:mit:kerberos:5-1.9.3
* cpe:/a:mit:kerberos:5-1.9.4
* cpe:/a:mit:kerberos:5
* cpe:/a:mit:kerberos:5-1.1
* cpe:/a:mit:kerberos:5-1.10.4
* cpe:/a:mit:kerberos:5-1.10.3
* cpe:/a:mit:kerberos:5-1.10.2
* cpe:/a:mit:kerberos:5-1.10.1
* cpe:/a:mit:kerberos:5-1.10
* cpe:/a:mit:kerberos:5-1.10.6 and previous versions
* cpe:/a:mit:kerberos:5-1.10.5

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

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