What is CVE-2012-1146?

CVE-2012-1146 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2012-1146 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2012-1146?

CVE-2012-1146 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2012-1146?

No patch is currently available for CVE-2012-1146. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2012-1146 actively exploited?

CVE-2012-1146 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2012-1146

Medium

The mem_cgroup_usage_unregister_event function in mm/memcontrol.c in the Linux kernel before 3.2.10 does not properly handle multiple events that are attached to the same eventfd, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by registering memory threshold events.

Package Linux Kernel

Published 2012-05-17

Last modified 2026-04-29

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-476

CVE-2012-1146 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2012-1146 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
http://lists.fedoraproject.org/pipermail/package-announce/2012-March/075781.html

Mailing List Third Party Advisory
Lists
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html

Mailing List Third Party Advisory
Secunia
http://secunia.com/advisories/48898

Broken Link
Secunia
http://secunia.com/advisories/48964

Broken Link
Exchange
https://exchange.xforce.ibmcloud.com/vulnerabilities/73711

Third Party Advisory VDB Entry
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=371528caec553785c37f73fa3926ea0de84f986f
Patch
Kernel patch commit
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10
Patch
Kernel patch commit
http://www.openwall.com/lists/oss-security/2012/03/07/3
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2012-1146

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2012-05-17

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2012-1146?

CVE-2012-1146 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2012-1146 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2012-1146?

CVE-2012-1146 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2012-1146?

No patch is currently available for CVE-2012-1146. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2012-1146 actively exploited?

No — CVE-2012-1146 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. View CWE-476 on MITRE CWE →