CVE-2022-29800

EUVD-2022-34121
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
NISTPrimary
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
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: 33%
Affected Products (NVD)
VendorProductVersion
microsoftwindows_defender_for_endpoint
-
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
networkd-dispatcher
bookworm
2.2.3-1
fixed
bullseye
unimportant
sid
2.2.4-1.1
fixed
trixie
2.2.4-1.1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
networkd-dispatcher
bionic
Fixed 1.7-0ubuntu3.4
released
focal
Fixed 2.1-2~ubuntu20.04.2
released
impish
Fixed 2.1-2ubuntu0.21.10.1
released
jammy
Fixed 2.1-2ubuntu0.22.04.1
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/