National Cyber Awareness System
Vulnerability Summary for CVE-2011-1873
Original release date:06/16/2011
Last revised:09/07/2011
Source:
US-CERT/NIST
Overview
win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 on 64-bit platforms does not properly validate pointers during the parsing of OpenType (aka OTF) fonts, which allows remote attackers to execute arbitrary code via a crafted font file, aka "Win32k OTF Validation Vulnerability."
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
References to Advisories, Solutions, and Tools
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External Source: MS
Name: MS11-041
Type: Advisory; Patch Information
External Source: XF
Name: ms-win-win32-otf-ce(67732)
External Source: SECTRACK
Name: 1025638
External Source: BID
Name: 48183
External Source: SECUNIA
Name: 44893
External Source: OVAL
Name: oval:org.mitre.oval:def:12725
References to Check Content
Identifier:oval:org.mitre.oval:def:12725
Check System:http://oval.mitre.org/XMLSchema/oval-definitions-5
