CVE-2021-3759
low-risk
Published 2022-08-23
A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.
Do I need to act?
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0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10
Medium
LOCAL
/ LOW complexity
Affected Products (2)
References (8)
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-3759
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1999675
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-3759
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1999675
25
/ 100
low-risk
Severity
18/34 · Moderate
Exploitability
0/34 · Minimal
Exposure
7/34 · Low