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             AUSCERT External Security Bulletin Redistribution

Vulnerability in Active Directory Could Lead to Denial of Service (2830914)
                               9 April 2013


        AusCERT Security Bulletin Summary

Product:           Microsoft Active Directory
Publisher:         Microsoft
Operating System:  Windows XP
                   Windows Server 2003
                   Windows Vista
                   Windows Server 2008
                   Windows 8
                   Windows Server 2008 R2
                   Windows 8
                   Windows Server 2012
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-1282  

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

Microsoft Security Bulletin MS13-032 - Important

Vulnerability in Active Directory Could Lead to Denial of Service (2830914)

Published Date: April 9, 2013

Version: 1.0

General Information

Executive Summary

This security update resolves a privately reported vulnerability in Active 
Directory. The vulnerability could allow denial of service if an attacker 
sends a specially crafted query to the Lightweight Directory Access Protocol 
(LDAP) service.

This security update is rated Important for Active Directory, Active Directory 
Application Mode (ADAM), Active Directory Lightweight Directory Service (AD 
LDS), and Active Directory Services on Microsoft Windows servers 
(excluding Itanium-based systems) and rated Low on Microsoft Windows clients.

The security update addresses the vulnerability by correcting how the LDAP 
service handles specially crafted LDAP queries. 

Affected Software

Active Directory Application Mode (ADAM)(2801109)
Active Directory (2772930)

Vulnerability Information

Memory Consumption Vulnerability - CVE-2013-1282

A denial of service vulnerability exists in implementations of Active 
Directory that could cause the service to stop responding. The 
vulnerability is caused when the LDAP service fails to handle a 
specially crafted query.

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