CVE-2021-42375 Affecting busybox package, versions <1.33.1-r5


0.0
medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.05% (14th percentile)
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NVD
5.5 medium
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SUSE
4.1 medium
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Red Hat
4.1 medium

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  • Snyk ID SNYK-ALPINE314-BUSYBOX-1915650
  • published 11 Nov 2021
  • disclosed 15 Nov 2021

How to fix?

Upgrade Alpine:3.14 busybox to version 1.33.1-r5 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:3.14 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.