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Windows Media Format Runtime ASX/ASF Parsing Vulnerabilities Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA22971  
Release Date: 2006-12-08
Last Update: 2007-12-11

Critical:
Highly critical
Impact: DoS
System access
Where: From remote
Solution Status: Vendor Patch

OS:Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Web Edition
Microsoft Windows Storage Server 2003
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional

Software:Microsoft Windows Media Format Runtime 7.x
Microsoft Windows Media Format Runtime 9.x
Microsoft Windows Media Player 6.x

CVE reference:CVE-2006-4702 (Secunia mirror)
CVE-2006-6134 (Secunia mirror)

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Description:
Some vulnerabilities have been reported in Windows Media Format Runtime, which potentially can be exploited by malicious people to compromise a user's system.

1) A boundary error within the handling of "REF HREF" tags in ASX playlists can be exploited to cause a limited heap-based buffer overflow via an overly long string with an invalid URL.

2) A boundary error within the processing of Advanced Systems Format (ASF) files can be exploited to cause a buffer overflow via a specially crafted ASF file.

Successful exploitation of the vulnerabilities may allow execution of arbitrary code.

Do you have this product installed on your home computer? Scan using the free Personal Software Inspector. Check if a vulnerable version is installed on computers in your corporate network, using the Network Software Inspector.

Solution:
Upgrade to Windows Media Player 11 or apply patches.

-- Windows Media Format 7.1 through 9.5 Series Runtime --

Windows 2000 SP4:
http://www.microsoft.com/downloads/de...=ef2dbcb6-cc8e-4299-a1e6-e6db202b41d5

Windows XP SP2:
http://www.microsoft.com/downloads/de...=19ca4b44-2b60-4270-9c42-f5063c627f91

Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=7322327f-abd9-4595-98dd-a19ef41652fc

Windows Server 2003 (optionally with SP1):
http://www.microsoft.com/downloads/de...=0cb64ad7-9b54-4e26-9125-e9e9a0c0fc65

Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=2203c66c-6722-42d5-a7dc-ac5e71402542


-- Windows Media Format 9.5 Series Runtime x64 Edition --

Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=c5ece3cd-ac7b-46b4-99dc-74a6b0f323d0

Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=c5ece3cd-ac7b-46b4-99dc-74a6b0f323d0


-- Microsoft Windows Media Player 6.4 --

Windows 2000 SP4:
http://www.microsoft.com/downloads/de...=e63ccdc3-a2ed-4ef6-b8a1-3f8be4b2726d

Windows XP SP2:
http://www.microsoft.com/downloads/de...=e63ccdc3-a2ed-4ef6-b8a1-3f8be4b2726d

Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=a5240618-5975-4ef2-9749-4cccddb786c7

Windows Server 2003 (optionally with SP1):
http://www.microsoft.com/downloads/de...=e63ccdc3-a2ed-4ef6-b8a1-3f8be4b2726d

Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=a4fca647-01b7-4201-85e8-1647412742b0

Provided and/or discovered by:
1) sehato
2) Reported by the vendor.

Changelog:
2006-12-11: Added link to US-CERT.
2006-12-12: Updated "Solution" section. Added CVE identifiers. Added additional information provided by Microsoft.
2007-12-11: Updated affected applications.

Original Advisory:
MS06-078 (KB923689):
http://www.microsoft.com/technet/security/Bulletin/MS06-078.mspx

Microsoft:
http://blogs.technet.com/msrc/archive...-code-for-asx-file-format-isssue.aspx

Other References:
US-CERT VU#208769
http://www.kb.cert.org/vuls/id/208769



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

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