CVE - CVE-2009-3722

CVE-ID
CVE-2009-3722	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
The handle_dr function in arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 2.6.31.1 does not properly verify the Current Privilege Level (CPL) before accessing a debug register, which allows guest OS users to cause a denial of service (trap) on the host OS via a crafted application.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:37221 URL:http://www.securityfocus.com/bid/37221 MISC:MDVSA-2010:198 URL:~~http://www.mandriva.com/security/advisories?name=MDVSA-2010:198~~ (Obsolete source) MISC:RHSA-2010:0126 URL:http://www.redhat.com/support/errata/RHSA-2010-0126.html MISC:USN-864-1 URL:http://www.ubuntu.com/usn/usn-864-1 MISC:[oss-security] 20091029 CVE request: kvm: check cpl before emulating debug register access URL:http://marc.info/?l=oss-security&m=125678631403558&w=2 MISC:[oss-security] 20091029 Re: CVE request: kvm: check cpl before emulating debug register access URL:http://marc.info/?l=oss-security&m=125680666827148&w=2 MISC:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0a79b009525b160081d75cef5dbf45817956acf2 URL:http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0a79b009525b160081d75cef5dbf45817956acf2 MISC:http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.9 URL:http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.9 MISC:http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.1 URL:http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.1 MISC:http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc1 URL:http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc1 MISC:https://bugzilla.redhat.com/show_bug.cgi?id=531660 URL:https://bugzilla.redhat.com/show_bug.cgi?id=531660 MISC:oval:org.mitre.oval:def:9892 URL:https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9892
Assigning CNA
Red Hat, Inc.
Date Record Created
20091016	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20091016)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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