Vulnerability Details : CVE-2022-0480
A flaw was found in the filelock_init in fs/locks.c function in the Linux kernel. This issue can lead to host memory exhaustion due to memcg not limiting the number of Portable Operating System Interface (POSIX) file locks.
Products affected by CVE-2022-0480
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-0480
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 12 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-0480
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2022-0480
-
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Primary)
References for CVE-2022-0480
-
https://lore.kernel.org/linux-mm/20210902215519.AWcuVc3li%25akpm%40linux-foundation.org/
[patch 101/212] memcg: enable accounting for file lock caches - Andrew MortonVendor Advisory
-
https://ubuntu.com/security/CVE-2022-0480
CVE-2022-0480 | UbuntuThird Party Advisory
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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0f12156dff2862ac54235fc72703f18770769042
kernel/git/torvalds/linux.git - Linux kernel source treePatch
-
https://github.com/kata-containers/kata-containers/issues/3373
Host Memory Exhaustion Attack from Inside Kata Containers · Issue #3373 · kata-containers/kata-containers · GitHubIssue Tracking;Third Party Advisory
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https://access.redhat.com/security/cve/CVE-2022-0480
Red Hat Customer Portal - Access to 24x7 support and knowledgeThird Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=2049700
2049700 – (CVE-2022-0480) CVE-2022-0480 kernel: memcg does not limit the number of POSIX file locks allowing memory exhaustionIssue Tracking;Third Party Advisory
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