# CVE-2022-29800: networkd-dispatcher: A time-of-check-time-of-use (TOCTOU) race condition vulnerability was found in networkd-dispatcher

CVE-2022-29800 is fixed in networkd-dispatcher on 1 platform, first by networkd-dispatcher 1.7-0ubuntu3.4, released April 26, 2022. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-29800
- Priority: Routine
- CVSS: 4.7 (High)
- EPSS: 0.0716
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 26, 2022

## Description

A time-of-check-time-of-use (TOCTOU) race condition vulnerability was found in networkd-dispatcher. This flaw exists because there is a certain time between the scripts being discovered and them being run. An attacker can abuse this vulnerability to replace scripts that networkd-dispatcher believes to be owned by root with ones that are not.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | networkd-dispatcher Debian 12.15 (bookworm) | 2.2.3-1 | [DEBIAN-CVE-2022-29800](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29800.md) | Sep 21, 2022 |
| Linux | networkd-dispatcher Debian 13.5 (trixie) | 2.2.3-1 | [DEBIAN-CVE-2022-29800](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29800.md) | Sep 21, 2022 |
| Linux | networkd-dispatcher Debian 14 | 2.2.3-1 | [DEBIAN-CVE-2022-29800](https://patchblox.com/security/data/fix/linux/debian-cve-2022-29800.md) | Sep 21, 2022 |
| Linux | networkd-dispatcher Ubuntu 18.04.6 LTS (bionic) | 1.7-0ubuntu3.4 | [networkd-dispatcher 1.7-0ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-networkd-dispatcher-1.7-0ubuntu3.4.md) | Apr 26, 2022 |
| Linux | networkd-dispatcher Ubuntu 20.04 LTS (focal) | 2.1-2~ubuntu20.04.2 | [networkd-dispatcher 2.1-2~ubuntu20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-networkd-dispatcher-2.1-2-ubuntu20.04.2.md) | Apr 26, 2022 |
| Linux | networkd-dispatcher Ubuntu 22.04.1 LTS (jammy) | 2.1-2ubuntu0.22.04.1 | [networkd-dispatcher 2.1-2ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-networkd-dispatcher-2.1-2ubuntu0.22.04.1.md) | Apr 26, 2022 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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