Debian DLA-1726-1 : bash security update

High Nessus Plugin ID 123093

Synopsis

The remote Debian host is missing a security update.

Description

Two issues have been fixed in bash, the GNU Bourne-Again Shell :

CVE-2016-9401

The popd builtin segfaulted when called with negative out of range offsets.

CVE-2019-9924

Sylvain Beucler discovered that it was possible to call commands that contained a slash when in restricted mode (rbash) by adding them to the BASH_CMDS array.

For Debian 8 'Jessie', these problems have been fixed in version 4.3-11+deb8u2.

We recommend that you upgrade your bash packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2019/03/msg00028.html

https://packages.debian.org/source/jessie/bash

Plugin Details

Severity: High

ID: 123093

File Name: debian_DLA-1726.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2019/03/26

Updated: 2019/04/02

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS v3.0

Base Score: 7.8

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:bash, p-cpe:/a:debian:debian_linux:bash-builtins, p-cpe:/a:debian:debian_linux:bash-doc, p-cpe:/a:debian:debian_linux:bash-static, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Patch Publication Date: 2019/03/25

Vulnerability Publication Date: 2017/01/23

Reference Information

CVE: CVE-2016-9401, CVE-2019-9924