CVE-2021-20319

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Summary

CVECVE-2021-20319
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-03-04 18:15:00 UTC
Updated2022-03-11 15:37:00 UTC
DescriptionAn 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.

Risk And Classification

Problem Types: CWE-347

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Redhat Coreos-installer All All All All

References

ReferenceSourceLinkTags
coreos-installer < 0.10.1 improperly verifies GPG signature when decompressing gzipped artifact · Advisory · coreos/coreos-installer · GitHub MISC github.com
[release-0.10] io: check for EOF when decoding a gzip stream (CVE-2021-20319) by bgilbert · Pull Request #659 · coreos/coreos-installer · GitHub MISC github.com
2011862 – (CVE-2021-20319) CVE-2021-20319 coreos-installer: incorrect signature verification on gzip-compressed install images MISC bugzilla.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 239734 Red Hat OpenShift Container Platform 4.9 Security Update (RHSA-2021:3934)
  • 239744 Red Hat OpenShift Container Platform 4.8 Security Update (RHSA-2021:3926)
  • 239745 Red Hat OpenShift Container Platform 4.7 Security Update (RHSA-2021:3930)
  • 239779 Red Hat OpenShift Container Platform 4.6 Security Update (RHSA-2021:4008)
  • 282001 Fedora Security Update for rust (FEDORA-2021-449a2bdaf3)
  • 282002 Fedora Security Update for rust (FEDORA-2021-3d52eb54ca)
  • 770084 Red Hat OpenShift Container Platform 4.9 Security Update (RHSA-2021:3934)
  • 770085 Red Hat OpenShift Container Platform 4.8 Security Update (RHSA-2021:3926)
  • 770086 Red Hat OpenShift Container Platform 4.7 Security Update (RHSA-2021:3930)
  • 770087 Red Hat OpenShift Container Platform 4.6 Security Update (RHSA-2021:4008)
  • 770095 Red Hat OpenShift Container Platform 4.7 Security Update (RHSA-2021-3930)
  • 770100 Red Hat OpenShift Container Platform 4.6 Security Update (RHSA-2021-4008)
  • 770104 Red Hat OpenShift Container Platform 4.8 Security Update (RHSA-2021-3926)
  • 770110 Red Hat OpenShift Container Platform 4.9 Security Update (RHSA-2021-3934)
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