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Category:   Application (Security)  >   Kerberos Vendors:   MIT
(Sun Issues Fix) Kerberos kadmind GSS-API 'mechglue' Memory Error Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1022233
SecurityTracker URL:  http://securitytracker.com/id/1022233
CVE Reference:   CVE-2006-6144   (Links to External Site)
Date:  May 15 2009
Impact:   Execution of arbitrary code via network, Root access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5-1.5 through 5-1.5.1
Description:   A vulnerability was reported in Kerberos in kadmind. A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted data to trigger a memory management error in the 'mechglue' abstraction interface of the GSS-API implementation and execute arbitrary code on the target system. The code will run with the privileges of the target kadmind service.

A remote user can also cause kadmind to crash.

A remote user can also cause third-party server applications that use the GSS-API library to execute arbitrary code.

The vendor believes that exploitation of this vulnerability is difficult.

The vendor discovered this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system with the privileges of kadmind.
Solution:   Sun has issued a fix.

SPARC Platform

* Solaris 9 with patch 112908-35 or later

x86 Platform

* Solaris 9 with patch 115168-20 or later

Sun is working on a fix for Solaris 8 and Solaris 10.

The Sun advisory is available at:

http://sunsolve.sun.com/search/document.do?assetkey=1-66-201294-1

Vendor URL:  web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2006-003-mechglue.txt (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  UNIX (Solaris - SunOS)
Underlying OS Comments:  8, 9, 10

Message History:   This archive entry is a follow-up to the message listed below.
Jan 10 2007 Kerberos kadmind GSS-API 'mechglue' Memory Error Lets Remote Users Execute Arbitrary Code



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