CVE-2012-1146

moderate-risk

Published 2012-05-17

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.

Do I need to act?

0.10% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (6)

Linux Kernel

Linux Enterprise Server

Fedora

Linux Enterprise Desktop

Linux Enterprise High Availability Extension

Linux Enterprise Server

Affected Vendors

Fedoraproject Suse Linux

References (20)

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=...

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

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

Broken Link http://secunia.com/advisories/48898

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

Mailing List http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10

Exploit http://www.openwall.com/lists/oss-security/2012/03/07/3

Exploit https://bugzilla.redhat.com/show_bug.cgi?id=800813

Third Party Advisory https://exchange.xforce.ibmcloud.com/vulnerabilities/73711

Exploit https://github.com/torvalds/linux/commit/371528caec553785c37f73fa3926ea0de84f986...