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

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CVE-2012-0045

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/07/2012
Last modified:
11/04/2025

Description

The em_syscall function in arch/x86/kvm/emulate.c in the KVM implementation in the Linux kernel before 3.2.14 does not properly handle the 0f05 (aka syscall) opcode, which allows guest OS users to cause a denial of service (guest OS crash) via a crafted application, as demonstrated by an NASM file.

Impact

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

Base Score: 4.70 MEDIUM
Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C

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

Base Score 2.0
4.70
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.2.13 (including)
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.4:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.5:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.0.7:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools