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CVE-2021-3669

Published: Aug 26, 2022Updated: Nov 3, 2025 Sources: CVE List NVD BDUCWE-400
5.5MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 80.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

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
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Weaknesses

CWE-400CWE-770

Affected Products

Red Hat Inc.
commercial·USaka redhat, red hat
build of quarkusOn-prem
Operating Systems / linux-distro
developer toolsOn-prem
Operating Systems / linux-distro
Red Hat Enterprise LinuxOn-premOS
Operating Systems / linux-distro
enterprise linux ausOn-prem
Operating Systems / linux-distro
enterprise linux for ibm z systemsOn-prem
Operating Systems / linux-distro
enterprise linux for ibm z systems eusOn-prem
Operating Systems / linux-distro
enterprise linux for power little endianOn-prem
Operating Systems / linux-distro
enterprise linux for power little endian eusOn-prem
Operating Systems / linux-distro
ibm
commercial·USaka international business machines
spectrum copy data managementOn-premDesktop App
Enterprise Software / itsm-monitoring
spectrum protect plusOn-premWeb App
Enterprise Software / itsm-monitoring
Сообщество свободного программного обеспечения
oss-projectaka fsf
Debian GNU/LinuxOn-premOS
Operating Systems / linux-distro
LinuxOn-premOS
Operating Systems / linux-distro
linux
oss-projectaka the linux kernel
linux kernelOn-premOS
Operating Systems
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
and 14 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-3669?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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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 →
News mentions
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