Microsoft Virtual PC/Server Heap Overflow Lets Local Users Gain Elevated Privileges
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SecurityTracker Alert ID: 1018567
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SecurityTracker URL: http://securitytracker.com/id?1018567
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CVE Reference: CVE-2007-0948
(Links to External Site)
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Updated: Nov 14 2007
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Original Entry Date: Aug 14 2007
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Impact: User access via local system
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Fix Available: Yes
Vendor Confirmed: Yes
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Advisory: Microsoft Security Bulletin
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Version(s): 2004, 2004 SP1, 2005, 2005 R2; 6.1 for Mac, 7 for Mac
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Description: A vulnerability was reported in Microsoft Virtual PC and Microsoft Virtual Server. A local user can obtain elevated privileges on the target system.
A local user with administrator permissions on the the guest operating system can trigger a heap overflow and execute arbitrary code
on the target host system or other guest operating systems.
Microsoft Virtual Server 2005 R2 SP1 and Microsoft Virtual PC 2007
are not affected.
Rafal Wojtczuk of McAfee Avert Labs reported this vulnerability.
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Impact: A local user can obtain elevated privileges on the target system.
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Solution: On August 14, 2007, Microsoft issued a fix. However, this original fix did not apply properly on some systems.
On November 13,
2007, Microsoft re-issued the fix. The new fix does not need to be applied on systems where the original update was successful.
The
vendor has issued the following revised fixes:
Microsoft Virtual PC 2004:
http://www.microsoft.com/downloads/details.aspx?FamilyId=cbdeaa50-7115-4673-97c4-10009f9c5
c42
Microsoft Virtual PC 2004 Service Pack 1:
http://www.microsoft.com/downloads/details.aspx?FamilyId=17ffe5a2-3551-4858-93b6-5e25af87d808
Microsoft
Virtual Server 2005 Standard Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyId=bc02ea6d-2884-4637-9894-3413a71329ee
Microsoft
Virtual Server 2005 Enterprise Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyId=da474b6f-9f0c-43f6-b432-050f7e76967d
Microsoft
Virtual Server 2005 R2 Standard Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyId=43fa1327-8e5e-4c92-901f-1ff2a0a087b4
Microsoft
Virtual Server 2005 R2 Enterprise Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyId=c2fc16c4-1fb0-4c09-b04a-684b40df8517
Microsoft
Virtual PC for Mac Version 6.1, Microsoft Virtual PC for Mac Version 7:
http://www.microsoft.com/mac/downloads.aspx#VPC
A
restart is required.
The Microsoft advisory is available at:
http://www.microsoft.com/technet/security/bulletin/ms07-049.mspx
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Vendor URL: www.microsoft.com/technet/security/bulletin/ms07-049.mspx (Links to External Site)
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Cause: Boundary error
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Underlying OS: UNIX (OS X), Windows (Any)
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Message History:
None.
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Source Message Contents
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Date: Tue, 14 Aug 2007 14:48:51 -0400
Subject: Microsoft Security Bulletin MS07-049 - Important: Vulnerability in Virtual PC and Virtual Server Could Allow Elevation of Privilege (937986)
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http://www.microsoft.com/technet/security/bulletin/ms07-049.mspx
CVE-2007-0948
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