SUSE SLES12 Security Update : bash (SUSE-SU-2018:1398-2)

high Nessus Plugin ID 118257

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

This update for bash fixes the following issues :

Security issues fixed :

CVE-2016-7543: A code execution possibility via SHELLOPTS+PS4 variable was fixed (bsc#1001299)

CVE-2016-0634: Arbitrary code execution via malicious hostname was fixed (bsc#1000396)

Non-security issues fixed: Fix repeating self-calling of traps due the combination of a non-interactive shell, a trap handler for SIGINT, an external process in the trap handler, and a SIGINT within the trap after the external process runs. (bsc#1086247)

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

Solution

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 12-SP2-BCL:zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2018-977=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1000396

https://bugzilla.suse.com/show_bug.cgi?id=1001299

https://bugzilla.suse.com/show_bug.cgi?id=1086247

https://www.suse.com/security/cve/CVE-2016-0634/

https://www.suse.com/security/cve/CVE-2016-7543/

http://www.nessus.org/u?f6ebc8c4

Plugin Details

Severity: High

ID: 118257

File Name: suse_SU-2018-1398-2.nasl

Version: 1.4

Type: local

Agent: unix

Published: 10/22/2018

Updated: 2/7/2022

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2016-7543

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.3

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:bash, p-cpe:/a:novell:suse_linux:bash-debuginfo, p-cpe:/a:novell:suse_linux:bash-debugsource, p-cpe:/a:novell:suse_linux:libreadline6, p-cpe:/a:novell:suse_linux:libreadline6-debuginfo, cpe:/o:novell:suse_linux:12

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/18/2018

Vulnerability Publication Date: 1/19/2017

Reference Information

CVE: CVE-2016-0634, CVE-2016-7543