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Microsoft Windows Vector Markup Language Vulnerabilities
Secunia Advisory: SA23677
Release Date: 2007-01-09
Last Update: 2007-01-16
Popularity: 30,517 views

Critical:
Extremely critical
Impact: 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 XP Home Edition
Microsoft Windows XP Professional

Software:Microsoft Internet Explorer 5.01
Microsoft Internet Explorer 6.x
Microsoft Internet Explorer 7.x

Binary Analysis: BA30 :: Available for 1 Credit
BA29 :: Available for 1 Credit

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CVE reference:CVE-2007-0024


Description:
Two vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious people to compromise a user's system

1) An integer overflow error in the Vector Markup Language (VML) implementation when processing recolorinfo sections can be exploited to cause a heap-based buffer overflow via e.g. a specially crafted web page or HTML e-mail.

Successful exploitation allows execution of arbitrary code.

NOTE: According to Microsoft, this vulnerability is being actively exploited.

2) A signedness error in the Vector Markup Language (VML) implementation when handling shape types can be exploited to reference user-controlled memory and cause a memory corruption, which may allow execution of arbitrary code.

Solution:
Apply patches.

Windows XP SP2:
http://www.microsoft.com/downloads/de...=81FB6A72-AC8A-4B28-905F-A44691D69432

Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=D06FD167-4F3E-4A2C-B52C-7426DDAD6828

Windows Server 2003 (optionally with SP1):
http://www.microsoft.com/downloads/de...=4FEE481F-DACE-4EAC-9AFE-BC28ADD70CC5

Windows Server 2003 for Itanium-based systems (optionally with SP1):
http://www.microsoft.com/downloads/de...=C517FB85-128E-43DB-A659-38AF32283716

Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=FF4A1F24-C1E9-4223-965B-14C4793AAF96

Internet Explorer 5.01 SP4 on Windows 2000 SP4:
http://www.microsoft.com/downloads/de...=B1C7F765-772C-4EEB-9438-BC820CB929E1

Internet Explorer 6 SP1 on Windows 2000 SP4:
http://www.microsoft.com/downloads/de...=922A3569-85D1-4584-9B84-4AA7304C69BB

Internet Explorer 7 on Windows XP SP2:
http://www.microsoft.com/downloads/de...=55A0A6EC-FEFA-40BB-BB6B-3AAB50275A73

Internet Explorer 7 on Windows XP Pro x64 Edition:
http://www.microsoft.com/downloads/de...=B5A8B1F2-6AF0-4F03-989C-C8DE2EACE71D

Internet Explorer 7 on Windows Server 2003 (optionally with SP1):
http://www.microsoft.com/downloads/de...=08E5CD2E-55C0-4AC9-859F-1B24497B31CE

Internet Explorer 7 on Windows Server 2003 for Itanium-based systems (optionally with SP1):
http://www.microsoft.com/downloads/de...=48B4D271-D494-4A5C-ABA8-11B3B4584902

Internet Explorer 7 on Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=F9C3E0DE-DB66-4D83-829F-C93052BDB1FA

Provided and/or discovered by:
1) Jospeh Moti
2) Discovered internally by the vendor.

Changelog:
2007-01-10: Added US-CERT reference.
2007-01-16: Added information about additional vulnerability having been fixed.

Original Advisory:
MS07-004 (KB929969):
http://www.microsoft.com/technet/security/Bulletin/MS07-004.mspx

iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=462

Other References:
US-CERT VU#122084:
http://www.kb.cert.org/vuls/id/122084


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