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.

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-1962-1 New kvm packages fix several vulnerabilities
EUVD EUVD EUVD-2009-3695 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.
Ubuntu USN Ubuntu USN USN-864-1 Linux kernel vulnerabilities
Fixes

Solution

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Workaround

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History

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T06:38:30.478Z

Reserved: 2009-10-16T00:00:00.000Z

Link: CVE-2009-3722

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2009-10-30T20:30:00.377

Modified: 2025-04-09T00:30:58.490

Link: CVE-2009-3722

cve-icon Redhat

Severity : Moderate

Publid Date: 2009-09-10T00:00:00Z

Links: CVE-2009-3722 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses