Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2012-4461

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
22/01/2013
Last modified:
11/04/2025

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.

Impact

Vector 2.0
AV:L/AC:M/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 1.90 LOW
Vector: AV:L/AC:M/Au:N/C:N/I:N/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
1.90
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.6.8 (including)
cpe:2.3:o:linux:linux_kernel:3.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.6.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.6.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.6.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.6.4:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.6.5:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.6.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.6.7:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools