What is CVE-2012-0045?

CVE-2012-0045 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10. CVE-2012-0045 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2012-0045?

CVE-2012-0045 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is AV:L/AC:M/Au:N/C:N/I:N/A:C.

Is there a patch available for CVE-2012-0045?

No patch is currently available for CVE-2012-0045. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2012-0045 actively exploited?

CVE-2012-0045 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2012-0045

Medium

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.

Package Linux Kernel

Published 2012-07-03

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

None

Integrity

None

Availability

Vector string

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

References

The following references provide additional information about CVE-2012-0045 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html
Kernel.org
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.14
Openwall
http://www.openwall.com/lists/oss-security/2012/01/12/2

Exploit
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=773370

Exploit
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c2226fc9e87ba3da060e47333657cd6616652b84
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/c2226fc9e87ba3da060e47333657cd6616652b84
Patch

Details

CVE ID CVE-2012-0045

Severity Medium

CVSS score 4.7 / 10

CVSS version 2.0

Published 2012-07-03

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2012-0045?

CVE-2012-0045 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 . CVE-2012-0045 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2012-0045?

CVE-2012-0045 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:M/Au:N/C:N/I:N/A:C.
Is there a patch available for CVE-2012-0045?

No patch is currently available for CVE-2012-0045. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2012-0045 actively exploited?

No — CVE-2012-0045 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.