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CVE-2021-3669

Published: Aug 26, 2022Updated: Nov 3, 2025 Sources: CVE List NVD BDUCWE-400
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.3%
Top 80.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-400CWE-770

Affected Products

kerneln/a
linux kernellinux
On-premOS
Operating Systems
spectrum copy data managementibm
On-prem
Enterprise Software / itsm-monitoring
spectrum protect plusibm
On-premWeb App
Enterprise Software / itsm-monitoring
debian linuxdebian
On-premOS
Operating Systems / linux-distro
linuxoss-projectOperating Systemsaka the linux kernel
ibmcommercialUSEnterprise Softwareaka international business machines
debianoss-projectGBOperating Systemsaka debian gnu/linux
and 24 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=1986473
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=1980619
bugzilla.redhat.com
https://access.redhat.com/security/cve/CVE-2021-3669
access.redhat.com
and 29 more references View all →

Timeline

Published
Aug 26, 2022
Last Updated
Nov 3, 2025

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