CVE-2021-4197
Linux Kernel Cgroups Control Groups Namespaces Privilege Escalation
Description
An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.
INFO
Published Date :
March 23, 2022, 8:15 p.m.
Last Modified :
Nov. 7, 2023, 3:40 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2021-4197
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-2021-4197.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2035652 | Issue Tracking Third Party Advisory |
| https://lore.kernel.org/lkml/20211209214707.805617-1-tj%40kernel.org/T/ | |
| https://security.netapp.com/advisory/ntap-20220602-0006/ | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5127 | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5173 | Third Party Advisory |
| https://www.oracle.com/security-alerts/cpujul2022.html | 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-2021-4197 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-4197 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 -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://lore.kernel.org/lkml/20211209214707.805617-1-tj%40kernel.org/T/ [No types assigned] Removed Reference Red Hat, Inc. https://lore.kernel.org/lkml/[email protected]/T/ -
Reanalysis by [email protected]
May. 16, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.17 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.2 up to (excluding) 4.14.276 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.238 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.189 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.111 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.14 -
Reanalysis by [email protected]
Feb. 03, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.17 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.17 -
Modified Analysis by [email protected]
Oct. 05, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20220602-0006/ No Types Assigned https://security.netapp.com/advisory/ntap-20220602-0006/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2022/dsa-5127 No Types Assigned https://www.debian.org/security/2022/dsa-5127 Third Party Advisory Changed Reference Type https://www.debian.org/security/2022/dsa-5173 No Types Assigned https://www.debian.org/security/2022/dsa-5173 Third Party Advisory Changed Reference Type https://www.oracle.com/security-alerts/cpujul2022.html No Types Assigned https://www.oracle.com/security-alerts/cpujul2022.html Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.1:*:*:*:*:*:*:* *cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:* *cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.2.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 25, 2022
Action Type Old Value New Value Added Reference https://www.oracle.com/security-alerts/cpujul2022.html [No Types Assigned] -
CVE Modified by [email protected]
Jul. 04, 2022
Action Type Old Value New Value Added Reference https://www.debian.org/security/2022/dsa-5173 [No Types Assigned] -
CVE Modified by [email protected]
Jun. 02, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220602-0006/ [No Types Assigned] -
CVE Modified by [email protected]
May. 03, 2022
Action Type Old Value New Value Added Reference https://www.debian.org/security/2022/dsa-5127 [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 30, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2035652 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2035652 Issue Tracking, Third Party Advisory Changed Reference Type https://lore.kernel.org/lkml/[email protected]/T/ No Types Assigned https://lore.kernel.org/lkml/[email protected]/T/ Exploit, Mailing List, Third Party Advisory Added CWE NIST CWE-287 Added CPE Configuration OR *cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.17
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-4197 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-2021-4197
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
0.07798
percentile