CVE-2023-0229 is a medium-severity (CVSS 6.3) Improper Input Validation vulnerability in github.com/openshift/apiserver-library-go. A fix is available for github.com/openshift/apiserver-library-go — see the affected versions and patch details below.
github.com/openshift/apiserver-library-go Improper Input Validation vulnerability
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2023-0229.
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
CVE-2023-0229 plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 376,715 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
github.com/openshift/apiserver-library-goReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
A flaw was found in github.com/openshift/apiserver-library-go, used in OpenShift 4.12 and 4.11, that contains an issue that can allow low-privileged users to set the seccomp profile for pods they control to "unconfined." By default, the seccomp profile used in the restricted-v2 Security Context Constraint (SCC) is "runtime/default," allowing users to disable seccomp for pods they can create and modify.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/openshift/apiserver-library-go | all versions | 0.0.0-20230120221150-cefee9e0162bgo get github.com/openshift/apiserver-library-go@v0.0.0-20230120221150-cefee9e0162b |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/openshift/apiserver-library-go, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/openshift/apiserver-library-go to 0.0.0-20230120221150-cefee9e0162b or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2023-0229 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2023-0229 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2023-0229. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
This flaw does not affect OpenShift versions 4.10 and earlier.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat OpenShift Container Platform 4.12 | microshift-0:4.12.6-202303012057.p0.g50997a2.assembly.4.12.6.el8 | RHBA-2023:1037 |
| Red Hat OpenShift Container Platform 4.13 | openshift-0:4.13.0-202304211155.p0.gb404935.assembly.stream.el8 | RHSA-2023:1325 |
Frequently Asked Questions
Is CVE-2023-0229 in your dependencies?
O3 Security finds CVE-2023-0229 across Go dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.