GLSA-202105-09 : BusyBox: Denial of service

high Nessus Plugin ID 150013
New! Plugin Severity Now Using CVSS v3

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Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-202105-09 (BusyBox: Denial of service)

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.

Solution

All BusyBox users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=sys-apps/busybox-1.32.1'

See Also

https://security.gentoo.org/glsa/202105-09

Plugin Details

Severity: High

ID: 150013

File Name: gentoo_GLSA-202105-09.nasl

Version: 1.2

Type: local

Published: 5/27/2021

Updated: 6/1/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:busybox, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 5/26/2021

Vulnerability Publication Date: 3/19/2021

Reference Information

CVE: CVE-2021-28831

GLSA: 202105-09