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Category:   Application (Security)  >   Kerberos Vendors:   MIT
Kerberos Null Pointer Dereference in KDC PKINIT Code Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1028204
SecurityTracker URL:  http://securitytracker.com/id/1028204
CVE Reference:   CVE-2013-1415   (Links to External Site)
Date:  Feb 25 2013
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 5-1.11.1
Description:   A vulnerability was reported in MIT Kerberos. A remote user can execute arbitrary code on the target system.

A remote user with a PKINIT certificate can send specially crafted data to trigger a null pointer dereference in the KDC plugin for PKINIT and execute arbitrary code.

If anonymous PKINIT is enabled, no authentication is required.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued a fix (5-1.10.4, 5-1.11.1).

The vendor's advisory is available at:

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

Vendor URL:  web.mit.edu/kerberos/krb5-1.11/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Mar 18 2013 (Red Hat Issues Fix) Kerberos Null Pointer Dereference in KDC PKINIT Code Lets Remote Users Execute Arbitrary Code
Red Hat has issued a fix for Red Hat Enterprise Linux 6.
Sep 26 2013 (Oracle Issues Fix for Solaris) Kerberos Null Pointer Dereference in KDC PKINIT Code Lets Remote Users Execute Arbitrary Code
Oracle has issued a fix for Solaris 11.1.



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