CVE-2021-4197

CVSS V2 High 7.2 CVSS V3 High 7.8
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.
Overview
  • CVE ID
  • CVE-2021-4197
  • Assigner
  • secalert@redhat.com
  • Vulnerability Status
  • Undergoing Analysis
  • Published Version
  • 2022-03-23T20:15:10
  • Last Modified Date
  • 2023-02-03T23:59:45
Weakness Enumerations
CWE URL
CWE-287 http://cwe.mitre.org/data/definitions/287.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.17
AND
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.2.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.2
  • Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2035652 Issue Tracking Third Party Advisory
https://lore.kernel.org/lkml/20211209214707.805617-1-tj@kernel.org/T/ Exploit Mailing List Third Party Advisory
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-4197
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4197
History
Created Old Value New Value Data Type Notes
2022-04-04 00:39:59 Added to TrackCVE
2022-12-06 13:08:23 2022-03-23T20:15Z 2022-03-23T20:15:10 CVE Published Date updated
2022-12-06 13:08:23 2022-10-05T18:37:30 CVE Modified Date updated
2022-12-06 13:08:23 Analyzed Vulnerability Status updated
2022-12-06 13:08:27 References updated
2022-12-12 19:13:46 Analyzed Undergoing Analysis Vulnerability Status updated
2023-02-04 01:12:43 2023-02-03T23:59:45 CVE Modified Date updated
2023-02-04 01:12:43 Undergoing Analysis Analyzed Vulnerability Status updated
2023-04-12 15:13:38 Analyzed Undergoing Analysis Vulnerability Status updated