Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 3.2.10 |
| Fedoraproject | Fedora | 16 |
| Suse | Linux Enterprise Desktop | 11 |
| Suse | Linux Enterprise High Availability Extension | 11 |
| Suse | Linux Enterprise Server | 11 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.fedoraproject.org/pipermail/package-announce/2012-March/075781.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.htmlMailing ListThird Party Advisory
- http://secunia.com/advisories/48898Broken Link
- http://secunia.com/advisories/48964Broken Link
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10Mailing ListPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2012/03/07/3ExploitMailing ListPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=800813ExploitIssue TrackingPatch
- https://exchange.xforce.ibmcloud.com/vulnerabilities/73711Third Party AdvisoryVDB Entry
- https://github.com/torvalds/linux/commit/371528caec553785c37f73fa3926ea0de84f986ExploitPatchThird Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://lists.fedoraproject.org/pipermail/package-announce/2012-March/075781.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.htmlMailing ListThird Party Advisory
- http://secunia.com/advisories/48898Broken Link
- http://secunia.com/advisories/48964Broken Link
FAQ
What is CVE-2012-1146?
CVE-2012-1146 is a vulnerability with a CVSS score of 5.5 (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 u...
How severe is CVE-2012-1146?
CVE-2012-1146 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-1146?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Fedoraproject Fedora, Suse Linux Enterprise Desktop, Suse Linux Enterprise High Availability Extension, Suse Linux Enterprise Server.