CVE-2021-42375 Affecting busybox package, versions <1:1.35.0-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-BUSYBOX-1913973
  • published11 Nov 2021
  • disclosed15 Nov 2021

Introduced: 11 Nov 2021

CVE-2021-42375  (opens in a new tab)

How to fix?

Upgrade Debian:unstable busybox to version 1:1.35.0-1 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 Debian. See How to fix? for Debian:unstable 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 Scores

version 3.1