Linux Kernel cgroups Subsystem cgroup-v1.c cgroup_release_agent_write improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been classified as critical. Affected is the function cgroup_release_agent_write of the file kernel/cgroup/cgroup-v1.c of the component cgroups Subsystem. The manipulation leads to improper authentication. This vulnerability is documented as CVE-2022-0492. Additionally, an exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (unknown version) and classified as critical. This issue affects the function cgroup_release_agent_write of the file kernel/cgroup/cgroup-v1.c of the component cgroups Subsystem. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability.

The weakness was released 03/04/2022. It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2022-0492 since 02/04/2022. Technical details as well as a exploit are known.

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 236676 (Alibaba Cloud Linux 3 : 0029: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2022:0029)), which helps to determine the existence of the flaw in a target environment. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 06/02/2026 with a due date of 06/05/2026:

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the databases at Tenable (236676) and EUVD (EUVD-2022-15629). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 7.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

ADP CISA Base Score: 7.8
ADP CISA Vector: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236676
Nessus Name: Alibaba Cloud Linux 3 : 0029: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2022:0029)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

02/04/2022 🔍
03/04/2022 +28 days 🔍
03/04/2022 +0 days 🔍
06/03/2026 +1552 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-0492 (🔍)
GCVE (CVE): GCVE-0-2022-0492
GCVE (VulDB): GCVE-100-194171
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/04/2022 07:52
Updated: 06/03/2026 04:09
Changes: 03/04/2022 07:52 (41), 03/06/2022 10:01 (1), 03/06/2022 10:03 (1), 05/18/2025 15:20 (16), 03/28/2026 13:16 (1), 06/02/2026 21:23 (13), 06/03/2026 04:09 (28)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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