CVE-2009-3722

Linux Kernel < 2.6.31.1 - Denial of Service via Debug Register Access

Title source: llm
STIX 2.1

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 (12)

Core 12
Core References
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9892
Mailing List mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=125678631403558&w=2
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/usn-864-1
Vendor Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=531660
Vendor Advisory vendor-advisory x_refsource_redhat
http://www.redhat.com/support/errata/RHSA-2010-0126.html
Mailing List mailing-list x_refsource_mlist
http://marc.info/?l=oss-security&m=125680666827148&w=2
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/37221

Scores

EPSS 0.0228
EPSS Percentile 81.5%

Details

CWE
CWE-264
Status published
Products (50)
linux/linux_kernel 2.6.0
linux/linux_kernel 2.6.1
linux/linux_kernel 2.6.2
linux/linux_kernel 2.6.3
linux/linux_kernel 2.6.4
linux/linux_kernel 2.6.5
linux/linux_kernel 2.6.6
linux/linux_kernel 2.6.7
linux/linux_kernel 2.6.8
linux/linux_kernel 2.6.8.1
... and 40 more
Published Oct 30, 2009
Tracked Since Feb 18, 2026