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Last updated: 10/31/2014 9:19:39 PM

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Vulnerability Summary for CVE-2012-1016

Original release date: 03/04/2013
Last revised: 10/10/2013
Source: US-CERT/NIST

Overview

The pkinit_server_return_padata function in plugins/preauth/pkinit/pkinit_srv.c in the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.4 attempts to find an agility KDF identifier in inappropriate circumstances, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted Draft 9 request.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:N/A:P) (legend)
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

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External Source: CONFIRM
Name: https://github.com/krb5/krb5/commit/db64ca25d661a47b996b4e2645998b5d7f0eb52c
External Source: CONFIRM
Name: http://web.mit.edu/kerberos/www/krb5-1.10/
Type: Patch Information
External Source: SECUNIA
Name: 55040
External Source: CONFIRM
Name: http://krbdev.mit.edu/rt/Ticket/Display.html?id=7527

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