CVE-2021-3669
Linux Kernel Shared Memory Scalability Denial of Service
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.
INFO
Published Date :
Aug. 26, 2022, 4:15 p.m.
Last Modified :
July 7, 2023, 7:16 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2021-3669
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-3669.
| URL | Resource |
|---|---|
| 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 | Issue Tracking Permissions Required |
| https://security-tracker.debian.org/tracker/CVE-2021-3669 | Issue Tracking Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3669 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3669 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Jul. 07, 2023
Action Type Old Value New Value Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1986473 Permissions Required https://bugzilla.redhat.com/show_bug.cgi?id=1986473 Issue Tracking, Permissions Required Removed CWE NIST CWE-400 Added CWE NIST CWE-770 -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value Removed CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Removed Reference https://access.redhat.com/errata/RHSA-2022:1975 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2022:1988 [No Types Assigned] Added CWE Red Hat, Inc. CWE-400 -
CVE Modified by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Added CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added Reference https://access.redhat.com/errata/RHSA-2022:1988 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2022:1975 [No Types Assigned] Removed CWE Red Hat, Inc. CWE-400 -
Initial Analysis by [email protected]
Aug. 29, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://access.redhat.com/security/cve/CVE-2021-3669 No Types Assigned https://access.redhat.com/security/cve/CVE-2021-3669 Issue Tracking, Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1980619 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1980619 Issue Tracking, Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1986473 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1986473 Permissions Required Changed Reference Type https://security-tracker.debian.org/tracker/CVE-2021-3669 No Types Assigned https://security-tracker.debian.org/tracker/CVE-2021-3669 Issue Tracking, Third Party Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:ibm:spectrum_copy_data_management:*:*:*:*:*:*:*:* versions from (including) 2.2.0.0 up to (including) 2.2.15.0 *cpe:2.3:a:ibm:spectrum_protect_plus:*:*:*:*:*:*:*:* versions from (including) 10.1.0 up to (including) 10.1.10.2 OR cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:redhat:build_of_quarkus:*:*:*:*:*:*:*:* versions from (including) 2.0 up to (excluding) 2.7 *cpe:2.3:a:redhat:developer_tools:1.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_aus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time:8:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:redhat:codeready_linux_builder:-:*:*:*:*:*:*:* OR cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:redhat:openshift_container_platform:4.6:*:*:*:*:*:*:* *cpe:2.3:a:redhat:openshift_container_platform:4.7:*:*:*:*:*:*:* *cpe:2.3:a:redhat:openshift_container_platform:4.9:*:*:*:*:*:*:* *cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:* OR cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3669 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-3669
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile