CVE-2009-3722

N/A Unknown
Published: October 30, 2009 Modified: April 23, 2026
View on NVD

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.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.9
Source: secalert@redhat.com
Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.1
Source: secalert@redhat.com
Vendor Advisory
http://www.securityfocus.com/bid/37221
Source: secalert@redhat.com
http://www.ubuntu.com/usn/usn-864-1
Source: secalert@redhat.com
http://marc.info/?l=oss-security&m=125678631403558&w=2
Source: af854a3a-2127-422b-91ae-364da2661108
http://marc.info/?l=oss-security&m=125680666827148&w=2
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.9
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31.1
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.32-rc1
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.redhat.com/support/errata/RHSA-2010-0126.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/37221
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/usn-864-1
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.redhat.com/show_bug.cgi?id=531660
Source: af854a3a-2127-422b-91ae-364da2661108

24 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
2.6%
86th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

linux