File Descriptor Leak Affecting polkit package, versions <0:0.117-10.amzn2023.0.3


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.07% (36th percentile)

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  • Snyk IDSNYK-AMZN2023-POLKIT-3340556
  • published6 Mar 2023
  • disclosed21 Feb 2022

Introduced: 21 Feb 2022

CVE-2021-4115  (opens in a new tab)
CWE-403  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 polkit to version 0:0.117-10.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2023-026.

NVD Description

Note: Versions mentioned in the description apply only to the upstream polkit package and not the polkit package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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

CVSS Scores

version 3.1