CVE-2021-20319 (GCVE-0-2021-20319)

Vulnerability from cvelistv5 – Published: 2022-03-04 17:05 – Updated: 2024-08-03 17:37
VLAI?
Summary
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 ?
No CVSS data available.
CWE
  • CWE-347 - - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
n/a coreos-installer Affected: Affects coreos-installer before v0.10.1, Fixed in v0.10.1.
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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.