CVE-2012-1146

CWE-476 — NULL Pointer Dereference14 documents7 sources
Severity
5.5MEDIUM
EPSS
0.1%
top 73.24%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Linux Linux KernelFedoraproject FedoraSuse Linux Enterprise Desktop+2 more
Timeline
PublishedMay 17
Latest updateMay 13

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 vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages18 packages

▶NVDlinux/linux_kernel< 3.2.10
▶Ubuntulinux< 3.11.0-12.19+1
▶Ubuntulinux-aws< 4.4.0-1002.2+1
▶Ubuntulinux-flo< 3.4.0-1.3+1
▶Ubuntulinux-gke< 4.4.0-1003.3

Also affects: Fedora 16

Patches

Patch: www.kernel.org ↗Patch: www.openwall.com ↗Patch: bugzilla.redhat.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-83vv-q4vw-p24m: The mem_cgroup_usage_unregister_event function in mm/memcontrol↗2022-05-13
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CVEList
CVE-2012-1146: The mem_cgroup_usage_unregister_event function in mm/memcontrol↗2012-05-17
▶
OSV
CVE-2012-1146: The mem_cgroup_usage_unregister_event function in mm/memcontrol↗2012-03-07
▶

📋Vendor Advisories

8
Ubuntu
Linux kernel (OMAP4) vulnerabilities↗2012-05-31
▶
Ubuntu
Linux kernel (OMAP4) vulnerabilities↗2012-05-18
▶
Ubuntu
Linux kernel (Natty backport) vulnerabilities↗2012-05-08
▶
Ubuntu
Linux kernel vulnerabilities↗2012-05-01
▶
Ubuntu
Linux kernel (Oneiric backport) vulnerabilities↗2012-05-01
▶

💬Community

2
Bugzilla
CVE-2012-1146 kernel: mm: memcg: unregistring of events attached to the same eventfd can lead to oops [fedora-all]↗2012-03-07
▶
Bugzilla
CVE-2012-1146 kernel: mm: memcg: unregistring of events attached to the same eventfd can lead to oops↗2012-03-07
▶
CVE-2012-1146 (MEDIUM CVSS 5.5) | The mem_cgroup_usage_unregister_eve | cvebase.io