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HIGH · 7.1

CVE-2009-3722

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, whic...

Vulnerability 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.

CVSS Score

7.1

HIGH

AV:N/AC:M/Au:N/C:N/I:N/A:C
Confidentiality
NONE
Integrity
NONE
Availability
COMPLETE

Affected Products

VendorProductVersions
LinuxLinux Kernel<= 2.6.31

Related Weaknesses (CWE)

CWE-264

References

FAQ

What is CVE-2009-3722?

CVE-2009-3722 is a vulnerability with a CVSS score of 7.1 (HIGH). 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, whic...

How severe is CVE-2009-3722?

CVE-2009-3722 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2009-3722?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.