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CVE-2016-0634

Published: 16 September 2016

The expansion of '\h' in the prompt string in bash 4.3 allows remote authenticated users to execute arbitrary code via shell metacharacters placed in 'hostname' of a machine.

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
bash
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.4-2ubuntu1)
bionic Not vulnerable
(4.4-2ubuntu1)
cosmic Not vulnerable
(4.4-2ubuntu1)
disco Not vulnerable
(4.4-2ubuntu1)
eoan Not vulnerable
(4.4-2ubuntu1)
focal Not vulnerable
(4.4-2ubuntu1)
hirsute Not vulnerable
(4.4-2ubuntu1)
precise Ignored
(end of life)
trusty
Released (4.3-7ubuntu1.7)
upstream
Released (4.4)
xenial
Released (4.3-14ubuntu1.2)
yakkety
Released (4.3-15ubuntu1.1)
zesty Not vulnerable
(4.4-2ubuntu1)
groovy Not vulnerable
(4.4-2ubuntu1)
Patches:
upstream: https://ftp.gnu.org/gnu/bash/bash-4.3-patches/bash43-047

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H