CVE-2022-0492: Linux Kernel Improper Authentication Vulnerability
High · CVSS 7.8 (CVSS 3.1)KEV known exploitedEPSS 5.5%, 93th percentilePublished Updated Assigner: redhat
In CISA’s Known Exploited Vulnerabilities catalog: Linux Kernel Improper Authentication Vulnerability.
Added , federal remediation due . Known 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.
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.
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · CWE-287
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
kernel
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- packetstormsecurity.com/files/166444/Kernel-Live-Patch-Security-Notice-LSN-0085-1.html (opens in new tab)
- packetstormsecurity.com/files/167386/Kernel-Live-Patch-Security-Notice-LSN-0086-1.html (opens in new tab)
- packetstormsecurity.com/files/176099/Docker-cgroups-Container-Escape.html (opens in new tab)
- bugzilla.redhat.com/show_bug.cgi (opens in new tab)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (opens in new tab)
- lists.debian.org/debian-lts-announce/2022/03/msg00011.html (opens in new tab)
- lists.debian.org/debian-lts-announce/2022/03/msg00012.html (opens in new tab)
- security.netapp.com/advisory/ntap-20220419-0002/ (opens in new tab)
- www.debian.org/security/2022/dsa-5095 (opens in new tab)
- www.debian.org/security/2022/dsa-5096 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)