PT-2017-9218 · Gnu+5 · Bash+5

Published 2016-11-21 · Updated 2018-12-19 · CVE-2016-7543

Positive Technologies (AI Summary)

CVSS v3.1

8.4

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Bash versions prior to 4.4

Description The issue allows local users to execute arbitrary commands with root privileges by manipulating the SHELLOPTS and PS4 environment variables.

Recommendations For versions prior to 4.4, update to version 4.4 or later to resolve the issue.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2017-2502

ALT-PU-2018-2880

CESA-2017_0725

CESA-2017_1931

CVE-2016-7543

DLA-680-1

MGASA-2016-0393

OPENSUSE-SU-2018_1419-1

RHSA-2017:0725

RHSA-2017:1931

RHSA-2017_0725

RHSA-2017_1931

SUSE-SU-2016:2872-1

SUSE-SU-2017:0302-1

SUSE-SU-2017:2699-1

SUSE-SU-2017:2700-1

SUSE-SU-2018:1398-1

SUSE-SU-2018:1398-2

USN-3294-1

USN-3294-2

Affected Products

Alt Linux

Bash

Centos

Red Hat

Suse

Ubuntu

References · 49

• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OU3C756YPHDAAPFX76UGZBAQQQ5UMHS5 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9401 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3294-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/OU3C756YPHDAAPFX76UGZBAQQQ5UMHS5 · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2017-0725.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3294-2 · Vendor Advisory
• https://security.gentoo.org/glsa/201701-02 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/5GRFMCTX4O7RTLZX5CI45KC7GGM6XIIY · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-7543 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-7543 · Vendor Advisory
• https://lists.gnu.org/archive/html/bug-bash/2016-09/msg00018.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-5932 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2016-0393.html · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z2VRBSIPZDZ75ZQ2DLITHUIDW4W26KVR · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-0634 · Vendor Advisory