CVE-2022-0492: A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c...
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.
Security readout for executives and security teams
CVE-2022-0492 is a Linux kernel privilege-escalation flaw involving cgroups v1. Under certain conditions, a lower-privileged local user or containerized process could gain higher privileges or break expected namespace isolation. Because CISA lists it in KEV, treat it as known exploited and prioritize remediation on Linux hosts, especially container platforms. Linux systems using affected kernel builds are the primary exposure. Container hosts using cgroups v1 deserve special review because the issue can affect namespace isolation. The provided affected data is limited and lists kernel 5.17 rc3; use distribution advisories and vendor backports to determine actual exposure. High priority. This is a known-exploited Linux kernel flaw with privilege-escalation and container-isolation implications. Patch internet-facing, shared, and container-hosting Linux infrastructure first, then complete fleet-wide kernel validation. Mitigation focus: Apply vendor-supported Linux kernel updates addressing CVE-2022-0492.; For Debian, review DSA-5095, DSA-5096, DLA-2940-1, and DLA-2941-1.; Confirm whether your vendor backported the upstream kernel fix..
Prepared
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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cwe · medium confidence lookup
CWE-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
Exploitation: activeAutomatable: noTechnical Impact: total
CVSS vector scores
1 official score
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-287 · source CWE mapping
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.