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Ubuntu Security Notice USN-4058-1

Ubuntu Security Notice USN-4058-1
Posted Jul 16, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4058-1 - It was discovered that Bash incorrectly handled the restricted shell. An attacker could possibly use this issue to escape restrictions and execute any command.

tags | advisory, shell, bash
systems | linux, ubuntu
advisories | CVE-2019-9924
MD5 | 7fb315e3b1d5e09fee1ed9f654e88e7a

Ubuntu Security Notice USN-4058-1

Change Mirror Download
==========================================================================
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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