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TITLE:
Microsoft Windows Vector Markup Language Buffer Overflow

SECUNIA ADVISORY ID:
SA26409

VERIFY ADVISORY:
http://secunia.com/advisories/26409/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

OPERATING SYSTEM:
Microsoft Windows 2000 Professional
http://secunia.com/product/1/
Microsoft Windows 2000 Datacenter Server
http://secunia.com/product/1177/
Microsoft Windows 2000 Advanced Server
http://secunia.com/product/21/
Microsoft Windows 2000 Server
http://secunia.com/product/20/
Microsoft Windows XP Home Edition
http://secunia.com/product/16/
Microsoft Windows XP Professional
http://secunia.com/product/22/
Microsoft Windows Server 2003 Datacenter Edition
http://secunia.com/product/1175/
Microsoft Windows Server 2003 Enterprise Edition
http://secunia.com/product/1174/
Microsoft Windows Server 2003 Standard Edition
http://secunia.com/product/1173/
Microsoft Windows Server 2003 Web Edition
http://secunia.com/product/1176/
Microsoft Windows Storage Server 2003
http://secunia.com/product/12399/
Microsoft Windows Vista
http://secunia.com/product/13223/

SOFTWARE:
Microsoft Internet Explorer 5.01
http://secunia.com/product/9/
Microsoft Internet Explorer 6.x
http://secunia.com/product/11/
Microsoft Internet Explorer 7.x
http://secunia.com/product/12366/

DESCRIPTION:
A vulnerability has been reported in Microsoft Windows, which can be
exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the Vector
Markup Language (VML) implementation (vgx.dll). This can be exploited
to cause a buffer overflow during the VML rendering when a user e.g.
visits a malicious website using Internet Explorer.

Successful exploitation may allow execution of arbitrary code.

SOLUTION:
Apply patches.

Internet Explorer 5.01 SP4 for Windows 2000 SP4:
http://www.microsoft.com/downloads/details.aspx?FamilyId=31E63D6F-B6B7-41D7-8AE6-DD7FCF89D477

Internet Explorer 6 SP1 for Windows 2000 SP4:
http://www.microsoft.com/downloads/details.aspx?FamilyId=7099D33A-0EF6-423F-824E-757482517612

Internet Explorer 6 for Windows XP SP2:
http://www.microsoft.com/downloads/details.aspx?FamilyId=4447D74F-09EA-4BE0-9DAE-C243CE657FB7

Internet Explorer 6 for Windows XP Professional x64 Edition
(optionally with SP2):
http://www.microsoft.com/downloads/details.aspx?FamilyId=98CCD207-F4D0-4625-AEAB-0EBF1643A5FD

Internet Explorer 6 for Windows Server 2003 SP1/SP2:
http://www.microsoft.com/downloads/details.aspx?FamilyId=463535AA-E04E-4A30-B3AB-8CD6D8CDD13C

Internet Explorer 6 for Windows Server 2003 x64 Edition (optionally
with SP2):
http://www.microsoft.com/downloads/details.aspx?FamilyId=9D4375D4-FB9B-4771-BD6F-E5D23EEDBC6B

Internet Explorer 6 for Windows Server 2003 for Itanium-based systems
SP1/SP2:
http://www.microsoft.com/downloads/details.aspx?FamilyId=C7BE313B-3405-42E1-9E4B-0CB6BF3D2CB1

Internet Explorer 7 for Windows XP SP2:
http://www.microsoft.com/downloads/details.aspx?FamilyId=9F5DA816-194C-478E-8A96-9421A0C52C9F

Internet Explorer 7 for Windows XP Professional x64 Edition
(optionally with SP2):
http://www.microsoft.com/downloads/details.aspx?FamilyId=1C3168A9-D959-4137-868A-EC70DA737C21

Internet Explorer 7 for Windows Server 2003 SP1/SP2:
http://www.microsoft.com/downloads/details.aspx?FamilyId=59884E97-4912-4A9A-8A31-8182EA2D24DB

Internet Explorer 7 for Windows Server 2003 x64 Edition (optionally
with SP2):
http://www.microsoft.com/downloads/details.aspx?FamilyId=42060E27-DE14-4D0C-92A0-138CB57FE2B5

Internet Explorer 7 for Windows Server 2003 with SP1/SP2 for
Itanium-based systems:
http://www.microsoft.com/downloads/details.aspx?FamilyId=A536206E-9D1B-49A8-81A1-53D46F2DE973
  
Internet Explorer 7 for Windows Vista:
http://www.microsoft.com/downloads/details.aspx?FamilyId=2DD908A4-6152-4976-AAAA-01F5F37C9143

Internet Explorer 7 for Windows Vista x64 Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyId=592435BC-1D43-4544-BD8A-4A2D829DC1A1

PROVIDED AND/OR DISCOVERED BY:
The vendor credits eEye Digital Security.

ORIGINAL ADVISORY:
MS07-050 (KB938127):
http://www.microsoft.com/technet/security/Bulletin/MS07-050.mspx

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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