CVE-2021-42375 Affecting busybox package, versions <1.34.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-ALPINE321-BUSYBOX-8482865
  • published6 Dec 2024
  • disclosed15 Nov 2021

Introduced: 15 Nov 2021

CVE-2021-42375  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 busybox to version 1.34.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Alpine. See How to fix? for Alpine:3.21 relevant fixed versions and status.

An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under rare conditions of filtered command input.

CVSS Base Scores

version 3.1