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CVE-2021-42375

Published: 15 November 2021

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.

Priority

Negligible

CVSS 3 base score: 5.5

Status

Package Release Status
busybox
Launchpad, Ubuntu, Debian
Upstream
Released (1.34.0)
Ubuntu 21.10 (Impish Indri) Not vulnerable
(1:1.30.1-6ubuntu3)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(1:1.30.1-6ubuntu2)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(1:1.30.1-4ubuntu6.3)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(1:1.27.2-2ubuntu3.3)
Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable

Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable