CVE-2021-4115
5.5
MEDIUM
CVSS 3.1
EPSS 0.09%
Description
There is a flaw in polkit which can allow an unprivileged user to cause polkit to crash, due to process file descriptor exhaustion. The highest threat from this vulnerability is to availability. NOTE: Polkit process outage duration is tied to the failing process being reaped and a new one being spawned
How to fix CVE-2021-4115
To remediate CVE-2021-4115, upgrade the affected package to a fixed version below.
- Debian/policykit-1—upgrade to 0.105-31+deb11u2 or later
Is CVE-2021-4115 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 0.105-31+deb11u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |