Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2012-0045

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.

Security Impact Summary

CVE-2012-0045 is a security vulnerability that . Impacting 1 product from linux organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2012, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2012-07-03T16:40:31.397

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.7 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:N/I:N/A:C

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

3.4

Impact Score

6.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	≤ 3.2.13	Yes
Operating System	linux	linux_kernel	3.0	Yes
Operating System	linux	linux_kernel	3.0	Yes
Operating System	linux	linux_kernel	3.0	Yes
Operating System	linux	linux_kernel	3.0	Yes
Operating System	linux	linux_kernel	3.0	Yes
Operating System	linux	linux_kernel	3.0	Yes
Operating System	linux	linux_kernel	3.0	Yes
Operating System	linux	linux_kernel	3.0.1	Yes
Operating System	linux	linux_kernel	3.0.2	Yes
Operating System	linux	linux_kernel	3.0.3	Yes
Operating System	linux	linux_kernel	3.0.4	Yes
Operating System	linux	linux_kernel	3.0.5	Yes
Operating System	linux	linux_kernel	3.0.6	Yes
Operating System	linux	linux_kernel	3.0.7	Yes
Operating System	linux	linux_kernel	3.0.8	Yes
Operating System	linux	linux_kernel	3.0.9	Yes
Operating System	linux	linux_kernel	3.0.10	Yes
Operating System	linux	linux_kernel	3.0.11	Yes
Operating System	linux	linux_kernel	3.0.12	Yes
Operating System	linux	linux_kernel	3.0.13	Yes
Operating System	linux	linux_kernel	3.0.14	Yes
Operating System	linux	linux_kernel	3.0.15	Yes
Operating System	linux	linux_kernel	3.0.16	Yes
Operating System	linux	linux_kernel	3.0.17	Yes
Operating System	linux	linux_kernel	3.0.18	Yes
Operating System	linux	linux_kernel	3.0.19	Yes
Operating System	linux	linux_kernel	3.0.20	Yes
Operating System	linux	linux_kernel	3.0.21	Yes
Operating System	linux	linux_kernel	3.0.22	Yes
Operating System	linux	linux_kernel	3.0.23	Yes
Operating System	linux	linux_kernel	3.0.24	Yes
Operating System	linux	linux_kernel	3.0.25	Yes
Operating System	linux	linux_kernel	3.0.26	Yes
Operating System	linux	linux_kernel	3.0.27	Yes
Operating System	linux	linux_kernel	3.0.28	Yes
Operating System	linux	linux_kernel	3.0.29	Yes
Operating System	linux	linux_kernel	3.0.30	Yes
Operating System	linux	linux_kernel	3.0.31	Yes
Operating System	linux	linux_kernel	3.0.32	Yes
Operating System	linux	linux_kernel	3.0.33	Yes
Operating System	linux	linux_kernel	3.0.34	Yes
Operating System	linux	linux_kernel	3.1	Yes
Operating System	linux	linux_kernel	3.1	Yes
Operating System	linux	linux_kernel	3.1	Yes
Operating System	linux	linux_kernel	3.1	Yes
Operating System	linux	linux_kernel	3.1	Yes
Operating System	linux	linux_kernel	3.1.1	Yes
Operating System	linux	linux_kernel	3.1.2	Yes
Operating System	linux	linux_kernel	3.1.3	Yes
Operating System	linux	linux_kernel	3.1.4	Yes
Operating System	linux	linux_kernel	3.1.5	Yes
Operating System	linux	linux_kernel	3.1.6	Yes
Operating System	linux	linux_kernel	3.1.7	Yes
Operating System	linux	linux_kernel	3.1.8	Yes
Operating System	linux	linux_kernel	3.1.9	Yes
Operating System	linux	linux_kernel	3.1.10	Yes
Operating System	linux	linux_kernel	3.2	Yes
Operating System	linux	linux_kernel	3.2.1	Yes
Operating System	linux	linux_kernel	3.2.2	Yes
Operating System	linux	linux_kernel	3.2.3	Yes
Operating System	linux	linux_kernel	3.2.4	Yes
Operating System	linux	linux_kernel	3.2.5	Yes
Operating System	linux	linux_kernel	3.2.6	Yes
Operating System	linux	linux_kernel	3.2.7	Yes
Operating System	linux	linux_kernel	3.2.8	Yes
Operating System	linux	linux_kernel	3.2.9	Yes
Operating System	linux	linux_kernel	3.2.10	Yes
Operating System	linux	linux_kernel	3.2.11	Yes
Operating System	linux	linux_kernel	3.2.12	Yes

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c2226fc9e87ba3da060e47333657cd6616652b84 ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html ([email protected])
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14 ([email protected])
http://www.openwall.com/lists/oss-security/2012/01/12/2 Exploit ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=773370 Exploit ([email protected])
https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84 Exploit, Patch ([email protected])
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c2226fc9e87ba3da060e47333657cd6616652b84 (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2012/01/12/2 Exploit (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=773370 Exploit (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84 Exploit, Patch (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For linux's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.