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Threat Encyclopedia

Vulnerability in TrueType Font Parsing Could Allow Elevation of Privilege (2639658)

CVE-2011-3402

SEVERITY

HIGH

//  ADVISORY DATE

09 NOV 2011


DESCRIPTION

A vulnerability in a Microsoft Windows component that may allow an attacker to execute code on the vulnerable machine. The vulnerability exists in the Win32k TrueType font parsing engine.

Once successfully exploited, this vulnerability can allow an attacker to install programs; view, change, or delete data; or create new accounts with full user rights. This vulnerability is purportedly related to DUQU malware. Note that the following operating systems' Server Core installations are not affected by this vulnerability:

  • 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 and Windows Server 2008 R2 for x64-based Systems Service Pack 1

This page will be updated as soon as new information is available.

TREND MICRO PROTECTION INFORMATION

As this vulnerability is related to infections with DUQU malware, Trend Micro users are advised to keep their anti-malware product patterns updated to protect from DUQU malware. Trend Micro clients using OfficeScan with Intrusion Defense Firewall (IDF) may refer to the table below for the pattern filter identifier(s):

Microsoft Bulletin ID Vulnerability ID Rule Number & Title IDF First Pattern Version IDF First Pattern Release Version
CVE-2011-3402 1004858 - Identified Suspicious Microsoft Office Files With Embedded Dexter Font 11-033 Nov 23, 2011
CVE-2011-3402 1004853 -Identified Suspicious Microsoft Office Files With Embedded Font 11-033 Nov 23, 2011
CVE-2011-3402 1004855 -Identified EOT File With Embedded TrueType Font File 11-033 Nov 23, 2011
CVE-2011-3402 1004850 -Identified TTF File/OTF File Download 11-033 Nov 23, 2011

SOLUTION

AFFECTED SOFTWARE AND VERSION

  • Windows XP Service Pack 3
  • Windows XP Professional x64 Edition Service Pack 2
  • Windows Server 2003 Service Pack 2
  • Windows Server 2003 x64 Edition Service Pack 2
  • Windows Server 2003 with SP2 for Itanium-based Systems
  • Windows Vista Service Pack 2
  • Windows Vista x64 Edition Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for Itanium-based Systems Service Pack 2
  • Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1
  • Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1

OTHER INFORMATION

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