| Name | CVE-2022-29800 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1010303 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| networkd-dispatcher (PTS) | buster | 2.0-2 | vulnerable |
| bullseye | 2.1-2 | vulnerable |
| bookworm | 2.2.3-1 | fixed |
| sid, trixie | 2.2.4-1.1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.microsoft.com/security/blog/2022/04/26/microsoft-finds-new-elevation-of-privilege-linux-vulnerability-nimbuspwn/
https://gitlab.com/craftyguy/networkd-dispatcher/-/commit/074ff68f08d64a963a13e3cfc4fb3e3fb9006dfe
https://gitlab.com/craftyguy/networkd-dispatcher/-/commit/2e226ee027bdc8022f0e10470318f89f25dc6133
No security impact in Debian, see #1010303