CVE-2021-3669

CVSS V2 None CVSS V3 Medium 5.5

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.

Overview

CVE ID
CVE-2021-3669

Assigner
secalert@redhat.com

Vulnerability Status
Modified

Published Version
2022-08-26T16:15:09

Last Modified Date
2023-02-12T23:42:17

Weakness Enumerations

CWE	URL
CWE-400	http://cwe.mitre.org/data/definitions/400.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
		AND
cpe:2.3:o:linux:linux_kernel::::::::	1	OR
		AND
cpe:2.3:a:ibm:spectrum_copy_data_management::::::::	1	OR	2.2.0.0	2.2.15.0
cpe:2.3:a:ibm:spectrum_protect_plus::::::::	1	OR	10.1.0	10.1.10.2
cpe:2.3:o:linux:linux_kernel:-:::::::*	0	OR
		AND
cpe:2.3:o:debian:debian_linux:10.0:::::::*	1	OR
cpe:2.3:o:debian:debian_linux:11.0:::::::*	1	OR
		AND
cpe:2.3:o:fedoraproject:fedora:34:::::::*	1	OR
		AND
cpe:2.3:a:redhat:build_of_quarkus::::::::	1	OR	2.0	2.7
cpe:2.3:a:redhat:developer_tools:1.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_aus:8.6:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_for_real_time:8:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.6:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.6:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:::::::*	1	OR
		AND
cpe:2.3:a:redhat:codeready_linux_builder:-:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*	0	OR
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:::::::*	0	OR
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:::::::*	0	OR
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:::::::*	0	OR
		AND
cpe:2.3:a:redhat:openshift_container_platform:4.6:::::::*	1	OR
cpe:2.3:a:redhat:openshift_container_platform:4.7:::::::*	1	OR
cpe:2.3:a:redhat:openshift_container_platform:4.9:::::::*	1	OR
cpe:2.3:a:redhat:virtualization_host:4.0:::::::*	1	OR
cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*	0	OR

CVSS Version 3

Version
3.1

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

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
5.5

Base Severity
MEDIUM

Exploitability Score
1.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://access.redhat.com/errata/RHSA-2022:1975
https://access.redhat.com/errata/RHSA-2022:1988
https://access.redhat.com/security/cve/CVE-2021-3669	Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1980619	Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1986473	Permissions Required
https://security-tracker.debian.org/tracker/CVE-2021-3669	Issue Tracking Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-3669
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3669

History

Created	Old Value	New Value	Data Type	Notes
2022-08-26 17:00:09				Added to TrackCVE
2023-02-02 22:14:18		2023-02-02T21:21:22	CVE Modified Date	updated
2023-02-02 22:14:18	Analyzed	Modified	Vulnerability Status	updated
2023-02-02 22:14:19			References	updated
2023-02-13 01:14:00		2023-02-12T23:42:17	CVE Modified Date	updated