National Cyber Awareness System
Vulnerability Summary for CVE-2012-1013
Original release date:06/07/2012
Last revised:04/02/2013
Source:
US-CERT/NIST
Overview
The check_1_6_dummy function in lib/kadm5/srv/svr_principal.c in kadmind in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x, and 1.10.x before 1.10.2 allows remote authenticated administrators to cause a denial of service (NULL pointer dereference and daemon crash) via a KRB5_KDB_DISALLOW_ALL_TIX create request that lacks a password.
Description
Per: http://cwe.mitre.org/data/definitions/476.html
'CWE-476: NULL Pointer Dereference'
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
8.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Required to exploit
Impact Type:Allows disruption of serviceUnknown
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: https://github.com/krb5/krb5/commit/c5be6209311d4a8f10fda37d0d3f876c1b33b77b
Type: Patch Information; Exploit
External Source: SUSE
Name: openSUSE-SU-2012:0834
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=827517
External Source: BID
Name: 53784
External Source: MANDRIVA
Name: MDVSA-2012:102
External Source: CONFIRM
Name: http://web.mit.edu/kerberos/krb5-1.10/
External Source: REDHAT
Name: RHSA-2012:1131
External Source: MLIST
Name: [kerberos-announce] 20120531 krb5-1.10.2 is released
External Source: CONFIRM
Name: http://krbdev.mit.edu/rt/Ticket/Display.html?user=guest&pass=guest&id=7152