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CVE-2012-4461

UnknownEPSS 0.36%

Last modified

CVE-2012-4461 is a vulnerability of currently unknown severity. The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service (kernel OOPS) by using the KVM_SET_SREGS ioctl to set the X86_CR4_OSXSAVE bit in the guest cr4 register, then calling the KVM_RUN ioctl.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

Description

The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service (kernel OOPS) by using the KVM_SET_SREGS ioctl to set the X86_CR4_OSXSAVE bit in the guest cr4 register, then calling the KVM_RUN ioctl.

Metrics

EPSS Probability
0.36%

27.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
LinuxLinux Kernel<= 3.6.8
LinuxLinux Kernel3.6
LinuxLinux Kernel3.6.1
LinuxLinux Kernel3.6.2
LinuxLinux Kernel3.6.3
LinuxLinux Kernel3.6.4
LinuxLinux Kernel3.6.5
LinuxLinux Kernel3.6.6
LinuxLinux Kernel3.6.7

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2012-4461?
The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service (kernel OOPS) by using the KVM_SET_SREGS ioctl to set the X86_CR4_OSXSAVE bit in the guest cr4 register, then calling the KVM_RUN ioctl.
How severe is CVE-2012-4461?
Severity scoring for CVE-2012-4461 is pending analysis. The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.
How do I fix CVE-2012-4461?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-4461?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST