CVE-2022-29800

NameCVE-2022-29800
DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs1010303

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
networkd-dispatcher (PTS)buster2.0-2vulnerable
sid, bullseye2.1-2vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
networkd-dispatchersource(unstable)(unfixed)unimportant1010303

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

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