CVE-2022-0492

Aliases:RHSA-2022:4642RHSA-2022:4644RHSA-2022:4655RHSA-2022:4717RHSA-2022:4721UBUNTU-CVE-2022-0492DEBIAN-CVE-2022-0492
Advisory lineage Upstream: 0 Downstream: 64
Analyzed
Published: 03 Mar 2022, 00:00
Last modified:03 Jun 2026, 03:55

Vulnerability Summary

Overall Risk (default)
medium
42/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
5.53% LOW
6% probability -1.00%
KEV
Listed
CISA
1 listing
Ransomware
No reports
Public exploits
2 found
Dark Web
Not detected

Timeline

03 Mar 2022, 00:00
Published
Vulnerability first disclosed
02 Jun 2026, 00:00
Added to CISA KEV
Linux Kernel Improper Authentication Vulnerability
03 Jun 2026, 03:55
Last Modified
Vulnerability information updated
05 Jun 2026, 00:00
CISA Remediation Due
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Description

A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.9AV:L/AC:M/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 5.53%• Percentile: 92%

Techniques & Countermeasures

  • CWE-287•Improper Authentication

    When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

  • CWE-862•Missing Authorization

    The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 18.04 | 20.04 | 22.04

  • debian•linux

    < 5.10.103-1 | < 5.16.7-1 | < 5.16.7-1 | < 5.16.7-1

  • ubuntu•linux

    all | < 4.4.0-222.255 | < 4.15.0-173.182 | < 5.4.0-105.119

  • ubuntu•linux-aws

    < 4.4.0-1102.107 | < 4.4.0-1138.152 | < 4.15.0-1124.133 | < 5.4.0-1069.73

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    < 5.13.0-1019.21~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1069.73~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2064.67 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1124.133~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1134.147~14.04.1 | < 4.15.0-1134.147~16.04.1 | all | < 5.4.0-1073.76

  • ubuntu•linux-azure-4.15

    < 4.15.0-1134.147

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    < 5.13.0-1021.24~20.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1073.76~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2046.50 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1032.35

  • ubuntu•linux-dell300x

    < 4.15.0-1038.43

  • ubuntu•linux-fips

    < 4.4.0-1072.78 | all | < 4.15.0-1081.90 | < 5.4.0-1046.52

  • ubuntu•linux-gcp

    < 4.15.0-1119.133~16.04.1 | all | < 5.4.0-1068.72

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1119.133

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    < 5.13.0-1021.25~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1068.72~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2029.32 | all | < 5.4.0-1067.71~20.04.1

  • ubuntu•linux-gke

    < 5.4.0-1066.69

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1066.69~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1037.38

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1037.38~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-173.182~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    < 5.13.0-37.42~20.04.1

  • ubuntu•linux-hwe-5.4

    < 5.4.0-105.119~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-ibm

    < 5.4.0-1018.20

  • ubuntu•linux-ibm-5.4

    < 5.4.0-1018.20~18.04.1

  • ubuntu•linux-intel-5.13

    < 5.13.0-1010.10

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-intel-iotg-5.15

    < 5.15.0-1008.11~20.04.1

  • ubuntu•linux-kvm

    < 4.4.0-1103.112 | < 4.15.0-1110.113 | < 5.4.0-1059.62

  • ubuntu•linux-lts-xenial

    < 4.4.0-222.255~14.04.1

Showing first 50 affected entries in server-rendered view.

References (38)