Vulnerabilidades Microsoft Windows relacionadas com ficheiros WMF e EMF.

Categoria: Alertas

quarta, 09 novembro 2005 10:32

Sistemas Operativos Implicados:	Windows XP/NT/2K/Me/98/95
Aplicações Implicadas:	Indefinido

Foram identificadas várias vulnerabilidades na DLL "GDI32.DLL" no processamento de imagens malformadas do tipo Windows Metafile (WMF) e Enhanced Metafile (EMF).
É aconselhável aplicar os patches disponibilizados pela Microsoft.

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A U S C E R T A L E R T

AL-2005.0038 -- AUSCERT ALERT
Microsoft Security Bulletin MS05-053
Vulnerabilities in Graphics Rendering Engine Could Allow
Code Execution (896424)
9 November 2005

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AusCERT Alert Summary
---------------------

Product: Windows
Publisher: Microsoft
Operating System: Windows Server 2003
Windows XP
Windows 2000
Impact: Execute Arbitrary Code/Commands
Denial of Service
Access: Remote/Unauthenticated
CVE Names: CAN-2005-0803 CAN-2005-2123 CAN-2005-2124

Original Bulletin:
http://www.microsoft.com/technet/security/Bulletin/MS05-053.mspx

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MS05-053 - Vulnerabilities in Graphics Rendering Engine Could Allow Code
Execution (896424)

Affected Software:
- Microsoft Windows 2000 Service Pack (SP) 4
- Microsoft Windows XP SP 1 and SP 2
- Microsoft Windows XP Professional x64 Edition
- Microsoft Windows Server 2003 SP 1
- Microsoft Windows Server 2003 for Itanium-based Systems SP1
- Microsoft Windows Server 2003 x64 Edition

Vulnerability Details

Graphics Rendering Engine - CAN-2005-2123:

A remote code execution vulnerability exists in the rendering of
Windows Metafile (WMF) and Enhanced Metafile (EMF) image formats that
could allow remote code execution on an affected system. Any program
that renders WMF or EMF images on the affected systems could be
vulnerable to this attack. An attacker who successfully exploited this
vulnerability could take complete control of an affected system.

Windows Metafile Vulnerability - CAN-2005-2124:

A remote code execution vulnerability exists in the rendering of
Windows Metafile (WMF) image format that could allow remote code
execution on an affected system. Any program that renders WMF images
on the affected systems could be vulnerable to this attack. An
attacker who successfully exploited this vulnerability could take
complete control of an affected system.

Enhanced Metafile Vulnerability - CAN-2005-0803:

A denial of service vulnerability exists in the rendering of Enhanced
Metafile (EMF) image format that could allow any program that renders
EMF images to be vulnerable to attack. An attacker who successfully
exploited this vulnerability could cause the affected programs to stop
responding.

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