[USN-4058-1] Bash vulnerability

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-4058-1
July 15, 2019

bash vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

A system hardening measure could be bypassed.

Software Description:
- bash: GNU Bourne Again SHell

Details:

It was discovered that Bash incorrectly handled the restricted shell. An
attacker could possibly use this issue to escape restrictions and execute
any command.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 LTS:
  bash                            4.3-14ubuntu1.4

In general, a standard system update will make all the necessary changes.

References:
  https://usn.ubuntu.com/4058-1
  CVE-2019-9924

Package Information:
  https://launchpad.net/ubuntu/+source/bash/4.3-14ubuntu1.4

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