Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2015.3062
Microsoft Security Bulletin MS15-127: Security Update for Microsoft Windows
DNS to Address Remote Code Execution (3100465)
9 December 2015
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Microsoft Windows Server
Publisher: Microsoft
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-6125
Original Bulletin:
https://technet.microsoft.com/en-us/library/security/MS15-127
- --------------------------BEGIN INCLUDED TEXT--------------------
Microsoft Security Bulletin MS15-127: Security Update for Microsoft Windows
DNS to Address Remote Code Execution (3100465)
Document Metadata
Bulletin Number: MS15-127
Bulletin Title: Security Update for Microsoft Windows DNS to Address Remote
Code Execution
Severity: Critical
KB Article: 3100465
Version: 1.0
Published Date: December 8, 2015
Executive Summary
This security update resolves a vulnerability in Microsoft Windows. The
vulnerability could allow remote code execution if an attacker sends specially
crafted requests to a DNS server.
This security update is rated Critical for all supported releases of Windows
Server 2008 for 32-bit Systems, Windows Server 2008 for x64-based Systems,
Windows Server 2008 R2 for x64-based Systems, Windows Server 2012, and Windows
Server 2012 R2. For more information, see the Affected Software section.
Affected Software
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2012
Windows Server 2012 R2
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core
installation)
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core
installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core
installation)
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2 (Server Core installation)
Vulnerability Information
Windows DNS Use After Free Vulnerability CVE-2015-6125
A remote code execution vulnerability exists in Windows Domain Name System
(DNS) servers when they fail to properly parse requests. An attacker who
successfully exploited the vulnerability could run arbitrary code in the
context of the Local System Account. Windows servers that are configured as
DNS servers are at risk from this vulnerability.
An attacker could create a specially crafted application to connect to a
Windows DNS server and then issue malicious requests to the server. The update
addresses the vulnerability by modifying how Windows DNS servers parse
requests.
Microsoft received information about this vulnerability through coordinated
vulnerability disclosure. At the time this security bulletin was originally
issued, Microsoft was unaware of any attack attempting to exploit this
vulnerability.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=io6Y
-----END PGP SIGNATURE-----