KVM x86 Emulator Bugs Let Local Users on the Guest System to Gain Privileges on the Target Guest System
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SecurityTracker Alert ID: 1023573 |
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SecurityTracker URL: http://securitytracker.com/id/1023573
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CVE Reference:
CVE-2010-0298, CVE-2010-0306
(Links to External Site)
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Updated: Feb 10 2010
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Original Entry Date: Feb 10 2010
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Impact:
User access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Description:
Two vulnerabilities were reported in KVM. A local user on the guest operating system can obtain elevated privileges on the target guest system.
A local user on the guest operating system can cause the x86 emulator to modify arbitrary kernel memory locations [CVE-2010-0298].
A local user on the guest operating system can bypass IOPL/CPL checking to cause the emulator to execute privileged instructions [CVE-2010-0306].
Gleb Natapov reported these vulnerabilities.
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Impact:
A local user on the guest operating system can obtain elevated privileges on the target guest system.
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Solution:
The vendor has proposed a source code fix, available at:
http://www.mail-archive.com/kvm@vger.kernel.org/msg28510.html
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Vendor URL: linux-kvm.org/ (Links to External Site)
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Cause:
Access control error
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Underlying OS:
Linux (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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Date: Wed, 10 Feb 2010 02:27:02 +0000
Subject: KVM
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CVE-2010-0298
CVE-2010-0306
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