09 February 2011
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2011.0136 Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege 9 February 2011 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Windows Kernel Publisher: Microsoft Operating System: Windows XP Windows Vista Windows 7 Windows Server 2003 Windows Server 2008 Impact/Access: Administrator Compromise -- Existing Account Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2011-0045 CVE-2010-4398 Original Bulletin: http://www.microsoft.com/technet/security/Bulletin/MS11-011.mspx - --------------------------BEGIN INCLUDED TEXT-------------------- Microsoft Security Bulletin MS11-011 - Important Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (2393802) Published: February 08, 2011 Version: 1.0 General Information Executive Summary This security update resolves one publicly disclosed vulnerability and one privately reported vulnerability in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logged on locally and ran a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit these vulnerabilities. The vulnerabilities could not be exploited remotely or by anonymous users. This security update is rated Important for all supported versions of Microsoft Windows. For more information, see the subsection, Affected and Non-Affected Software, in this section. The security update addresses the vulnerabilities by ensuring that the Windows kernel properly validates user-supplied data before allocating memory. Affected Software 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 1 and Windows Vista Service Pack 2 Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2 Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2 Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2 Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 Windows 7 for 32-bit Systems Windows 7 for x64-based Systems Windows Server 2008 R2 for x64-based Systems Windows Server 2008 R2 for Itanium-based Systems Vulnerability Information Driver Improper Interaction with Windows Kernel Vulnerability - CVE-2010-4398 An elevation of privilege vulnerability exists due to the improper interaction of drivers with the Windows kernel. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode and take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full administrative rights. Windows Kernel Integer Truncation Vulnerability - CVE-2011-0045 An elevation of privilege vulnerability exists due to the way that the Windows kernel allocates memory when reading user-supplied data. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode and take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full administrative rights. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: firstname.lastname@example.org Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iD8DBQFNUdhN/iFOrG6YcBERAsE8AKCNsreN2LzxxjvRRZR6mPt7rE1FtQCfeYRi fxDKJd7dfewekzCedQUHpO8= =P9YG -----END PGP SIGNATURE-----