cve.bz

CVE-2021-20319

7.8 highEPSS 0.5%

High (7.8) in redhat coreos-installer. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in coreos-installer 0.10.1.

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.

Severity

CVSS 3.1

7.8 high
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-31)
CWE
CWE-347
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-3r3g-g73x-g593crates.iocoreos-installer<0.10.10.10.1
RUSTSEC-2022-0103crates.iocoreos-installer>=0.0.0-0 <0.10.10.10.1

References

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