BusyBox: Denial of service — GLSA 202105-09

A vulnerability in BusyBox might allow remote attackers to cause a Denial of Service condition.

Affected packages

sys-apps/busybox on all architectures
Affected versions < 1.32.1
Unaffected versions >= 1.32.1

Background

BusyBox is a set of tools for embedded systems and is a replacement for GNU Coreutils.

Description

It was discovered that BusyBox mishandled the error bit on the huft_build result pointer when decompressing GZIP compressed data.

Impact

A remote attacker could entice a user to open a specially crafted GZIP file using BusyBox, possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All BusyBox users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=sys-apps/busybox-1.32.1"
 

References

Release date
May 26, 2021

Latest revision
May 26, 2021: 1

Severity
low

Exploitable
local, remote

Bugzilla entries