CVE-2021-20206

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Summary

CVECVE-2021-20206
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-03-26 22:15:00 UTC
Updated2023-11-07 03:29:00 UTC
DescriptionAn improper limitation of path name flaw was found in containernetworking/cni in versions before 0.8.1. When specifying the plugin to load in the 'type' field in the network configuration, it is possible to use special elements such as "../" separators to reference binaries elsewhere on the system. This flaw allows an attacker to execute other existing binaries other than the cni plugins/types, such as 'reboot'. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Risk And Classification

Problem Types: CWE-22

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cncf Container Network Interface All All All All
Application Linuxfoundation Container Network Interface All All All All

References

ReferenceSourceLinkTags
Directory Traversal in github.com/containernetworking/cni/pkg/invoke | Snyk MISC snyk.io
1919391 – (CVE-2021-20206) CVE-2021-20206 containernetworking-cni: Arbitrary path injection via type field in CNI configuration 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

  • 180278 Debian Security Update for golang-github-appc-cni (CVE-2021-20206)
  • 501808 Alpine Linux Security Update for buildah
  • 504590 Alpine Linux Security Update for buildah
  • 751850 OpenSUSE Security Update for buildah (openSUSE-SU-2022:0770-1)
  • 752641 SUSE Enterprise Linux Security Update for buildah (SUSE-SU-2022:3480-1)
  • 752726 SUSE Enterprise Linux Security Update for buildah (SUSE-SU-2022:3766-1)
  • 752819 SUSE Enterprise Linux Security Update for cni-plugins (SUSE-SU-2022:4151-1)
  • 752906 SUSE Enterprise Linux Security Update for cni (SUSE-SU-2022:4150-1)
  • 753019 SUSE Enterprise Linux Security Update for cni (SUSE-SU-2022:4592-1)
  • 753052 SUSE Enterprise Linux Security Update for cni-plugins (SUSE-SU-2022:4593-1)
  • 753101 SUSE Enterprise Linux Security Update for buildah (SUSE-SU-2022:0770-1)
  • 753242 SUSE Enterprise Linux Security Update for buildah (SUSE-SU-2022:3655-1)
  • 753592 SUSE Enterprise Linux Security Update for podman (SUSE-SU-2023:0187-1)
  • 753659 SUSE Enterprise Linux Security Update for podman (SUSE-SU-2023:0326-1)
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