CVE-2022-29800

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, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, 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)	bullseye	2.1-2	vulnerable
	bookworm	2.2.3-1	fixed
	forky, sid, trixie	2.2.4-1.1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
networkd-dispatcher	source	(unstable)	2.2.3-1	unimportant		1010303

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