Microsoft Windows GDI+ EMF EmfPlusFont Object denial of service

win-gdi-emfplusfont-dos (49438) The risk level is classified as MediumMedium Risk

Description:

The Microsoft Windows GDI+ (Gdiplus.dll) is vulnerable to a denial of service, caused by an off-by-one error in the GpFont.SetData() function when processing EMF image files. By persuading a victim to open a specially-crafted Enhanced Metafile (EMF) image file containing a malformed font length value in the EmfPlusFont Object record, a remote attacker could exploit this vulnerability and cause the affected application to crash.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.7
  Exploitability: Proof-of-Concept
  Remediation Level: Unavailable
  Report Confidence: Uncorroborated

Consequences:

Denial of Service

Remedy:

No remedy available as of September 1, 2014.

References:

  • Microsoft Security Research & Defense Blog, Thursday, March 26, 2009 1:39 PM: New EMF gdiplus.dll crash not exploitable for code execution.
  • [Black Security] Blog, Monday, March 23, 2009: Microsoft GdiPlus EMF GpFont.SetData Integer Overflow.
  • BID-34250: Microsoft GDI+ EMF 'GpFont.SetData()' Buffer Overflow Vulnerability
  • CVE-2009-1217: Off-by-one error in the GpFont::SetData function in gdiplus.dll in Microsoft GDI+ on Windows XP allows remote attackers to cause a denial of service (stack corruption and application termination) via a crafted EMF file that triggers an integer overflow, as demonstrated by voltage-exploit.emf, aka the Microsoft GdiPlus EMF GpFont.SetData integer overflow.
  • OSVDB ID: 54700: Microsoft GDI+ gdiplus.dll GpFont:etData Function Crafted EMF File Handling Off-by-one Overflow

Platforms Affected:

  • Microsoft Office XP SP1
  • Microsoft Office XP SP2
  • Microsoft Windows XP SP2 Home
  • Microsoft Windows XP SP1 Media Center
  • Microsoft Windows XP SP2 Media Center
  • Microsoft Windows XP SP1 Home
  • Microsoft Windows XP SP2 Professional
  • Microsoft Windows XP SP1 Professional
  • Microsoft Windows XP Gold

Reported:

Mar 23, 2009

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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