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CVE-2021-28831

Published: 19 March 2021

decompress_gunzip.c in BusyBox through 1.32.1 mishandles the error bit on the huft_build result pointer, with a resultant invalid free or segmentation fault, via malformed gzip data.

Priority

Low

CVSS 3 base score: 7.5

Status

Package Release Status
busybox
Launchpad, Ubuntu, Debian
bionic
Released (1:1.27.2-2ubuntu3.4)
focal
Released (1:1.30.1-4ubuntu6.4)
groovy Ignored
(reached end-of-life)
hirsute
Released (1:1.30.1-6ubuntu2.1)
impish
Released (1:1.30.1-6ubuntu3.1)
jammy
Released (1:1.30.1-7ubuntu2)
precise Ignored
(end of ESM support, was needed)
trusty Needed

upstream
Released (1.33.1, 1.34.0)
xenial
Released (1:1.22.0-15ubuntu1.4+esm1)
Patches:
upstream: https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd