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CVE Database

CVE-2009-3722

Impact: Moderate
Public: 2009-09-10
Bugzilla: 531660: CVE-2009-3722 KVM: Check cpl before emulating debug register access

Details

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2009-3722 from the MITRE CVE dictionary and NIST NVD.

Statement

Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-3722

The Red Hat Security Response Team has rated this issue as having moderate security impact, a future update will address this flaw.

CVSS v2 metrics

Base Score: 4.9
Base Metrics: AV:L/AC:L/Au:N/C:N/I:N/A:C
Access Vector: Local
Access Complexity: Low
Authentication: None
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
RHEL Virtualization version 5 (kvm) RHSA-2010:0126 March 01, 2010
RHEV Hypervisor for RHEL-5 (rhev-hypervisor) RHSA-2010:0172 March 24, 2010

External References

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.