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Category:   Application (Security)  >   Kerberos Vendors:   MIT
(Oracle Issues Fix for Solaris) Kerberos KDC Null Pointer Dereference for Multi-Realm KDCs Lets Remote Users Deny Service
SecurityTracker Alert ID:  1029839
SecurityTracker URL:  http://securitytracker.com/id/1029839
CVE Reference:   CVE-2013-1418   (Links to External Site)
Date:  Feb 27 2014
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Kerberos. A remote user can cause denial of service conditions.

A remote user can send specially crafted requests to trigger a null pointer dereference and cause the target KDC to crash.

KDCs configured to serve multiple realms are affected.

The vulnerability resides in the setup_server_realm() function in 'src/kdc/main.c'.

Impact:   A remote user can cause the target KDC to crash.
Solution:   Oracle has issued a fix for Solaris.

The Oracle advisory is available at:

https://blogs.oracle.com/sunsecurity/entry/multiple_vulnerabilities_in_kerberos1

Vendor URL:  web.mit.edu/kerberos/ (Links to External Site)
Cause:   Access control error
Underlying OS:  UNIX (Solaris - SunOS)
Underlying OS Comments:  10, 11.1

Message History:   This archive entry is a follow-up to the message listed below.
Nov 6 2013 Kerberos KDC Null Pointer Dereference for Multi-Realm KDCs Lets Remote Users Deny Service



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