What is CVE-2012-2133?

CVE-2012-2133 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.0 out of 10. CVE-2012-2133 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2012-2133?

CVE-2012-2133 has a CVSS score of 4.0 out of 10, rated Medium severity. The vector string is AV:L/AC:H/Au:N/C:N/I:N/A:C.

Is there a patch available for CVE-2012-2133?

No patch is currently available for CVE-2012-2133. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2012-2133 actively exploited?

CVE-2012-2133 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2012-2133

Medium

Use-after-free vulnerability in the Linux kernel before 3.3.6, when huge pages are enabled, allows local users to cause a denial of service (system crash) or possibly gain privileges by interacting with a hugetlbfs filesystem, as demonstrated by a umount operation that triggers improper handling of quota data.

Package Linux Kernel

Published 2012-07-03

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.0

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

User Interaction

Scope

Confidentiality

High

Integrity

None

Availability

Vector string

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

Weakness type

CWE-399

CVE-2012-2133 is classified as CWE-399

See CWE-399 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2012-2133 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
Debian Security
http://www.debian.org/security/2012/dsa-2469
Kernel.org
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.6
Openwall
http://www.openwall.com/lists/oss-security/2012/04/24/12
Securityfocus
http://www.securityfocus.com/bid/53233
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=817430
Exchange
https://exchange.xforce.ibmcloud.com/vulnerabilities/75168
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=90481622d75715bfcb68501280a917dbfe516029
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/90481622d75715bfcb68501280a917dbfe516029
Patch

Details

CVE ID CVE-2012-2133

Severity Medium

CVSS score 4.0 / 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-2012-2133?

CVE-2012-2133 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.0 out of 10 . CVE-2012-2133 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2012-2133?

CVE-2012-2133 has a CVSS score of 4.0 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:H/Au:N/C:N/I:N/A:C.
Is there a patch available for CVE-2012-2133?

No patch is currently available for CVE-2012-2133. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2012-2133 actively exploited?

No — CVE-2012-2133 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.