This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2021-20206 →
Categories
DEBIAN-CVE-2021-20206

An 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 'typ...

Original description

The description as published by the source.

An 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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 golang-github-appc-cni
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.1-1"}]}]
Debian:13 golang-github-appc-cni
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.1-1"}]}]
Debian:14 golang-github-appc-cni
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.1-1"}]}]

References

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