CVEvulnerability
CVE-2022-0492
CISA Known Exploited Vulnerability
Linux Kernel Improper Authentication Vulnerability — Linux Kernel
Linux Kernel contains an improper authentication vulnerability which could allow for privilege escalation via the cgroups v1 release_agent feature.
- Added to KEV
- 2026-06-02
- Remediation due
- 2026-06-05
- Ransomware use
- Unknown
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Notes
- This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af ; https://www.kernel.org/ ; https://nvd.nist.gov/vuln/detail/CVE-2022-0492
- Status
- Analyzed
- Published
- 2022-03-03
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-287, CWE-862
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.
Affected configurations
• netapp h300s firmware
• netapp h410c firmware
• netapp h410s firmware
• netapp h500s firmware
• netapp h700s firmware
• netapp bootstrap os
• linux linux kernel (>= 2.6.24 < 4.9.301)
• linux linux kernel (>= 4.10 < 4.14.266)
• linux linux kernel (>= 4.15 < 4.19.229)
• linux linux kernel (>= 4.20 < 5.4.177)
• linux linux kernel (>= 5.5 < 5.10.97)
• linux linux kernel (>= 5.11 < 5.15.20)
• linux linux kernel (>= 5.16 < 5.16.6)
• linux linux kernel 5.17
• debian debian linux 9.0
• debian debian linux 10.0
• debian debian linux 11.0
• redhat codeready linux builder 8.0
• redhat codeready linux builder 8.2
• redhat codeready linux builder for power little endian 8.0
• redhat codeready linux builder for power little endian 8.2
• redhat virtualization host 4.0
• redhat enterprise linux 8.0
• redhat enterprise linux eus 8.2
• redhat enterprise linux for ibm z systems 8.0
• redhat enterprise linux for ibm z systems eus 8.0
• redhat enterprise linux for power little endian 8.0
• redhat enterprise linux for power little endian eus 8.0
• redhat enterprise linux for real time for nfv tus 8.0
• redhat enterprise linux for real time for nfv tus 8.2
• redhat enterprise linux for real time tus 8.0
• redhat enterprise linux for real time tus 8.2
• redhat enterprise linux server aus 8.2
• redhat enterprise linux server for power little endian update services for sap solutions 8.1
• redhat enterprise linux server for power little endian update services for sap solutions 8.2
• redhat enterprise linux server tus 8.2
• redhat enterprise linux server update services for sap solutions 8.1
• redhat enterprise linux server update services for sap solutions 8.2
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 20.04
• canonical ubuntu linux 22.04
• fedoraproject fedora 35
• netapp solidfire\, enterprise sds \& hci storage node
• netapp solidfire \& hci management node
Related
References
- http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/176099/Docker-cgroups-Container-Escape.html Exploit, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=2051505 Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220419-0002/ Third Party Advisory
- https://www.debian.org/security/2022/dsa-5095 Third Party Advisory
- https://www.debian.org/security/2022/dsa-5096 Third Party Advisory
- http://packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/176099/Docker-cgroups-Container-Escape.html Exploit, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=2051505 Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=24f6008564183aa120d07c03d9289519c2fe02af Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220419-0002/ Third Party Advisory
- https://www.debian.org/security/2022/dsa-5095 Third Party Advisory
- https://www.debian.org/security/2022/dsa-5096 Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0492 US Government Resource