Description
An improper signature verification vulnerability was found in coreos-installer. A specially crafted gzip installation image can bypass the image signature verification and as a consequence can lead to the installation of unsigned content. An attacker able to modify the original installation image can write arbitrary data, and achieve full access to the node being installed.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | coreos-installer | Affects coreos-installer before v0.10.1, Fixed in v0.10.1. | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenShift 4 | coreos-installer +1 | 0.6.0-4.rhaos4.6.el8 | RHSA-2022:0055, RHSA-2021:4008, RHSA-2021:3934 |
| Red Hat OpenShift 4 | cri-o | 1.23.0-92.rhaos4.10.gitdaab4d1.el7 | RHSA-2022:0055 |
| Red Hat OpenShift 4 | jenkins | 2.319.2.1643288987-1.el8 | RHSA-2022:0055 |
| Red Hat OpenShift 4 | jenkins-2-plugins | 4.10.1643404185-1.el8 | RHSA-2022:0055 |
| Red Hat OpenShift 4 | openshift +1 | 4.10.0-202202250816.p0.ge419edf.assembly.stream.el7 | RHSA-2022:0055 |
| Red Hat OpenShift 4 | openshift-clients +1 | 4.10.0-202202160023.p0.gf93da17.assembly.stream.el7 | RHSA-2022:0055 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| crates.io | coreos-installer | < 0.10.1 | 0.10.1 | GHSA-3r3g-g73x-g593 |
| crates.io | coreos-installer | >= 0.0.0-0, < 0.10.1 | 0.10.1 | RUSTSEC-2022-0103 |
Advisories 5
- RHSA-2022:0055 Red Hat Security Advisory: OpenShift Container Platform 4.10.3 bug fix and security update Red Hat Security Advisories (RHSA) · Aug 20, 2026
- RHSA-2021:4008 Red Hat Security Advisory: OpenShift Container Platform 4.6.49 security update Red Hat Security Advisories (RHSA) · Aug 12, 2026
- RHSA-2021:3930 Red Hat Security Advisory: OpenShift Container Platform 4.7.36 security and bug fix update Red Hat Security Advisories (RHSA) · Aug 12, 2026
- RHSA-2021:3934 Red Hat Security Advisory: OpenShift Container Platform 4.9.4 packages and security update Red Hat Security Advisories (RHSA) · Aug 12, 2026
- RHSA-2021:3926 Red Hat Security Advisory: OpenShift Container Platform 4.8.17 security and bug fix update Red Hat Security Advisories (RHSA) · Aug 12, 2026