CVE-2022-0492 Linux Kernel Improper Authentication
Exploited in the wild
High 7.8
Published
Updated
Check this codebase for CVE-2022-0492 and fix it if it is affected.
What it is: CVE-2022-0492 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 3 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: Yes. Attackers have exploited CVE-2022-0492 in the wild since at least 2 Jun 2026.
Affected product: Canonical Ubuntu Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2022-0492/ (Markdown: https://insights.sbomify.com/CVE-2022-0492/index.md)
Attackers can escalate privileges and bypass namespace isolation by exploiting the cgroups v1 release_agent feature in the Linux kernel.
- Exploited in the wild
- Since 2 Jun 2026
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-0492?
CVE-2022-0492 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 3 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2022-0492?
It affects 27 products.
Linux distribution packages (40)
bpftool Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
bpftool-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-abi-whitelists Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debug Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debug-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debug-devel Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-devel Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-doc Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-tools Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-tools-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-tools-libs Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-tools-libs-devel Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
perf Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
perf-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
python-perf Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
python-perf-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-1160.66.1.el7 |
bpftool-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debug-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-tools-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-tools-libs-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-1160.66.1.el7 |
perf-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-1160.66.1.el7 |
python-perf-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-1160.66.1.el7 |
bpftool Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
bpftool-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
kernel Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-abi-whitelists Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-bootwrapper Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debug Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debug-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debug-devel Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debuginfo-common-ppc64 Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debuginfo-common-ppc64le Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debuginfo-common-s390x Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-1160.66.1.el7 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Linux kernel, Netapp Bootstrap Os, Netapp H300s Firmware and 21 more.
How do I fix CVE-2022-0492?
Apply the vendor's patch. US federal agencies must fix it by 5 Jun 2026.
Is CVE-2022-0492 being exploited?
Yes. Attackers have exploited CVE-2022-0492 in the wild since at least 2 Jun 2026.
Public exploit code: 1 Metasploit module and 8 proofs of concept on GitHub.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as A-224859358, AZL-8966, DEBIAN-CVE-2022-0492, PUB-A-224859358, RHSA-2022:4642, RHSA-2022:4644 and 6 more.