Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

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 Severity Score

7.5

Score breakdown

Status

Package Release Status
busybox
Launchpad, Ubuntu, Debian
jammy
Released (1:1.30.1-7ubuntu2)
kinetic
Released (1:1.30.1-7ubuntu2)
impish
Released (1:1.30.1-6ubuntu3.1)
bionic
Released (1:1.27.2-2ubuntu3.4)
focal
Released (1:1.30.1-4ubuntu6.4)
groovy Ignored
(end of life)
hirsute
Released (1:1.30.1-6ubuntu2.1)
xenial
Released (1:1.22.0-15ubuntu1.4+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
trusty
Released (1:1.21.0-1ubuntu1.4+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (1.33.1, 1.34.0)
lunar
Released (1:1.30.1-7ubuntu2)
Patches:
upstream: https://git.busybox.net/busybox/commit/?id=f25d254dfd4243698c31a4f3153d4ac72aa9e9bd

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H