CVE-2021-3669

MEDIUM

Linux Kernel - Denial of Service via Shared Memory Segment Count Exhaustion

Title source: llm

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.

References (5)

Core 5

Core References

Issue Tracking, Permissions Required x_refsource_misc

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

Issue Tracking, Third Party Advisory x_refsource_misc

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

Issue Tracking, Third Party Advisory x_refsource_misc

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

Issue Tracking, Third Party Advisory x_refsource_misc

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

Mailing List

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

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 3.2%

Attack Vector LOCAL

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

Details

CWE

CWE-770 CWE-400

Status published

Products (28)

debian/debian_linux 10.0

debian/debian_linux 11.0

fedoraproject/fedora 34

ibm/spectrum_copy_data_management 2.2.0.0 - 2.2.15.0

ibm/spectrum_protect_plus 10.1.0 - 10.1.10.2

linux/linux_kernel

redhat/build_of_quarkus 2.0 - 2.7

redhat/codeready_linux_builder

redhat/developer_tools 1.0

redhat/enterprise_linux 6.0

... and 18 more

Published Aug 26, 2022

Tracked Since Feb 18, 2026