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Sid 1-41365

Message

OS-WINDOWS Microsoft Windows RtlQueryRegistryValues buffer overflow attempt

Summary

Stack-based buffer overflow in the RtlQueryRegistryValues function in win32k.sys in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allows local users to gain privileges, and bypass the User Account Control (UAC) feature, via a crafted REG_BINARY value for a SystemDefaultEUDCFont registry key, aka "Driver Improper Interaction with Windows Kernel Vulnerability."

Impact

CVSS base score 7.2 CVSS impact score 10.0 CVSS exploitability score 3.9 confidentialityImpact COMPLETE integrityImpact COMPLETE availabilityImpact COMPLETE

CVE-2010-4398:

CVSS base score 7.2

CVSS impact score 10.0

CVSS exploitability score 3.9

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Detailed information

CVE-2010-4398: Stack-based buffer overflow in the RtlQueryRegistryValues function in win32k.sys in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allows local users to gain privileges, and bypass the User Account Control (UAC) feature, via a crafted REG_BINARY value for a SystemDefaultEUDCFont registry key, aka "Driver Improper Interaction with Windows Kernel Vulnerability."

Affected systems

  • microsoft windows2003server *
  • microsoft windows_7 *
  • microsoft windowsserver2008 *
  • microsoft windowsserver2008 r2
  • microsoft windows_vista *
  • microsoft windows_xp *

Ease of attack

CVE-2010-4398:

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

False positives

None known

False negatives

None known

Corrective action

Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

Contributors

  • Talos research team.
  • This document was generated from data supplied by the national vulnerability database, a product of the national institute of standards and technology.
  • For more information see nvd.

Additional References

  • docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-011