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CVE-2021-42374

Published: 15 November 2021

An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that

Priority

Low

CVSS 3 base score: 5.3

Status

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

Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable

Patches:
Upstream: https://git.busybox.net/busybox/commit/?id=04f052c56ded5ab6a904e3a264a73dc0412b2e78