CVE intelligence and bounded remediation

CVE-2022-0492 — Linux Kernel Improper Authentication Vulnerability

High CVSS 7.8 CISA KEV

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.

Severity
High
CVSS
7.8 (3.1)
Published
2022-03-03
CISA KEV
Known exploited
Ecosystem
operating-system
Weaknesses
CWE-287, CWE-862

Affected products

  • netapp / h300s_firmware
  • netapp / h410c_firmware
  • netapp / h410s_firmware
  • netapp / h500s_firmware
  • netapp / h700s_firmware
  • netapp / bootstrap_os

Showing 6 representative product identities from 47 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authentication bypass and missing authentication

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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