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Improper Input Validation Affecting bash package, versions <4.3-14ubuntu1.2

Severity

 Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.58% (44th percentile)

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  • Snyk IDSNYK-UBUNTU1604-BASH-351578
  • published19 Jan 2017
  • disclosed19 Jan 2017
Report a new vulnerability Found a mistake?

Introduced: 19 Jan 2017

CVE-2016-7543  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 bash to version 4.3-14ubuntu1.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bash package and not the bash package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Bash before 4.4 allows local users to execute arbitrary commands with root privileges via crafted SHELLOPTS and PS4 environment variables.

References