CVE-2021-3669

5.5 MEDIUM

Published: August 26, 2022 Modified: November 03, 2025

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://access.redhat.com/security/cve/CVE-2021-3669

Source: secalert@redhat.com

Issue Tracking Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1980619

Source: secalert@redhat.com

Issue Tracking Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1986473

Source: secalert@redhat.com

Issue Tracking Permissions Required

https://security-tracker.debian.org/tracker/CVE-2021-3669

Source: secalert@redhat.com

Issue Tracking Third Party Advisory

https://access.redhat.com/security/cve/CVE-2021-3669

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1980619

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1986473

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking Permissions Required

https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html

Source: af854a3a-2127-422b-91ae-364da2661108

https://security-tracker.debian.org/tracker/CVE-2021-3669

Source: af854a3a-2127-422b-91ae-364da2661108

Issue Tracking Third Party Advisory

9 reference(s) from NVD

Quick Stats

CVSS v3 Score

5.5 / 10.0

EPSS (Exploit Probability)

0.0%

3th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-400 CWE-770

Affected Vendors

redhat debian linux fedoraproject ibm

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