CVE-2022-29800

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.
TOCTOU
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.7 MEDIUM
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
fedoraCNA
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CVEADP
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CISA-ADPADP
4.7 MEDIUM
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 28%
VendorProductVersion
microsoftwindows_defender_for_endpoint
-
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
networkd-dispatcher
bullseye
unimportant
bookworm
2.2.3-1
fixed
sid
2.2.4-1.1
fixed
trixie
2.2.4-1.1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
networkd-dispatcher
jammy
Fixed 2.1-2ubuntu0.22.04.1
released
impish
Fixed 2.1-2ubuntu0.21.10.1
released
focal
Fixed 2.1-2~ubuntu20.04.2
released
bionic
Fixed 1.7-0ubuntu3.4
released
Common Weakness Enumeration
References
https://www.microsoft.com/security/blog/2022/04/26/microsoft-finds-new-elevation-of-privilege-linux-vulnerability-nimbuspwn/
https://www.microsoft.com/security/blog/2022/04/26/microsoft-finds-new-elevation-of-privilege-linux-vulnerability-nimbuspwn/