Name: CVE-2021-42375: Improper Handling of Invalid Use of Special Elements
Creator: Rapid7
Published: 2021-11-15T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-42375, CWE-159, CVSS 5.5, EPSS 0.00409

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 Details

CVSS 3.1 Base Score: 5.5
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alpine Linux	—	Upgrade busybox	Mar 26, 2024	Nov 15, 2021
Debian	—	Upgrade busybox	Jul 30, 2024	Nov 15, 2021
Gentoo Linux	—	Upgrade sys-apps/busybox.	Jul 9, 2024	Nov 15, 2021
Suse	—	Upgrade busyboxUpgrade busybox-warewulf3Upgrade busybox-staticUpgrade busybox-testsuite	Jan 21, 2022	Nov 15, 2021

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence