CVE-2021-20206: Input Validation
First published: Fri Jan 22 2021(Updated: )
A flaw was found in libcni. A user may be able to change the "type:" field in a CNI configuration to an arbitrary path and could execute arbitrary binaries on a host. Upstream patch: <a href="https://github.com/containernetworking/cni/pull/808">https://github.com/containernetworking/cni/pull/808</a>
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linuxfoundation Container Network Interface | <0.8.1 | |
| go/github.com/containernetworking/cni | <0.8.1 | 0.8.1 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2021-20206
- https://github.com/containernetworking/cni/pull/808
- https://bugzilla.redhat.com/show_bug.cgi?id=1919391
- https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMCONTAINERNETWORKINGCNIPKGINVOKE-1070549
- https://pkg.go.dev/vuln/GO-2022-0230
- https://github.com/advisories/GHSA-xjqr-g762-pxwp (Advisory)
- https://github.com/containernetworking/plugins/blob/master/go.mod#L10
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1919391#c7
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1925399
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1925398
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1926796
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1926801
- https://access.redhat.com/errata/RHSA-2021:0799
- https://access.redhat.com/security/cve/cve-2021-20206
- https://access.redhat.com/errata/RHSA-2021:1007
- https://access.redhat.com/errata/RHSA-2021:1005
- https://access.redhat.com/errata/RHSA-2021:1552
- https://access.redhat.com/errata/RHSA-2021:2438
- https://access.redhat.com/errata/RHSA-2021:3001
- https://access.redhat.com/errata/RHSA-2022:0492
- https://access.redhat.com/errata/RHSA-2022:1660
- https://www.cve.org/CVERecord?id=CVE-2021-20206 https://nvd.nist.gov/vuln/detail/CVE-2021-20206
Parent vulnerabilities
(Appears in the following advisories)
- collector/github-advisory-latest
- alias/GHSA-xjqr-g762-pxwp
- alias/CVE-2021-20206
- collector/github-advisory
- collector/redhat-cve
- collector/nvd-index
- collector/nvd-cve
- agent/weakness
- agent/author
- agent/type
- agent/first-publish-date
- agent/softwarecombine
- agent/severity
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/tags
- agent/event
- agent/description
- collector/redhat-bugzilla
- source/Red Hat
- agent/software-canonical-lookup
- agent/last-modified-date
- agent/trending
- package-manager/go
- vendor/linuxfoundation
- canonical/linuxfoundation container network interface
- package-manager/redhat