NULL pointer dereference in Linux Kernel
CVE-2012-1146
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Linux Kernel
- Fedoraproject Fedora — versions 16
- SUSE Linux Enterprise Desktop — versions 11
- SUSE Linux Enterprise High Availability Extension — versions 11
- SUSE Linux Enterprise Server — versions 11
Weakness classification (CWE)
References
- lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html (vendor-advisory, Mailing List, Third Party Advisory)
- github.com/torvalds/linux/commit/371528caec553785c37f73fa3926ea0de84f986f (Exploit, Patch, Third Party Advisory)
- secunia.com/advisories/48898 (Broken Link, third-party-advisory)
- www.openwall.com/lists/oss-security/2012/03/07/3 (mailing-list, Exploit, Patch, Mailing List, Third Party Advisory)
- www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10 (Patch, Mailing List, Vendor Advisory)
- secunia.com/advisories/48964 (Broken Link, third-party-advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/73711 (VDB Entry, Third Party Advisory, vdb-entry)
- git.kernel.org/
- lists.fedoraproject.org/pipermail/package-announce/2012-March/075781.html (vendor-advisory, Mailing List, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Exploit, Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2012-1146?
- CVE-2012-1146 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2012-05-17.
- How severe is CVE-2012-1146?
- Medium severity. CVSS v3 base score is 5.5 out of 10.