CVE-2012-4461

CVE Details

Release Date:	2012-11-06
Impact:	Moderate	What is this?

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.

See more information about CVE-2012-4461 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	4.7
Vector String:	AV:L/AC:M/Au:N/C:N/I:N/A:C
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Medium
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel-uek)	ELSA-2013-2503	2013-02-07
Oracle Linux version 6 (kernel)	ELSA-2013-0223	2013-02-05
Oracle Linux version 6 (kernel-uek)	ELSA-2013-2503	2013-02-07