DEBIAN-CVE-2021-20206
Record from OSV · Published March 26, 2021
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| golang-github-appc-cni | Debian:12 | 0.8.1-1 |
| golang-github-appc-cni | Debian:14 | 0.8.1-1 |
| golang-github-appc-cni | Debian:13 | 0.8.1-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | golang-github-appc-cni | 0 |
| Debian:14 | golang-github-appc-cni | 0 |
| Debian:13 | golang-github-appc-cni | 0 |
Timeline
- Mar 26, 2021 CVE Published
- Oct 23, 2026 CVE Updated
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