High severityNVD Advisory· Published Mar 4, 2022· Updated Aug 3, 2024
CVE-2021-20319
CVE-2021-20319
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
coreos-installercrates.io | < 0.10.1 | 0.10.1 |
Affected products
2- coreos-installer/coreos-installerdescription
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-3r3g-g73x-g593ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-20319ghsaADVISORY
- bugzilla.redhat.com/show_bug.cgighsax_refsource_MISCWEB
- github.com/coreos/coreos-installer/pull/655ghsaWEB
- github.com/coreos/coreos-installer/pull/659/commits/ad243c6f0eff2835b2da56ca5f7f33af76253c89ghsax_refsource_MISCWEB
- github.com/coreos/coreos-installer/security/advisories/GHSA-3r3g-g73x-g593ghsax_refsource_MISCWEB
- rustsec.org/advisories/RUSTSEC-2022-0103.htmlghsaWEB
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