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Ubuntu Security Notice USN-3294-2

Ubuntu Security Notice USN-3294-2
Posted Aug 1, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3294-2 - USN-3294-1 fixed a vulnerability in Bash. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that Bash incorrectly handled the SHELLOPTS and PS4 environment variables. A local attacker could use this issue to execute arbitrary code with root privileges. Various other issues were also addressed.

tags | advisory, arbitrary, local, root, bash
systems | linux, ubuntu
advisories | CVE-2016-7543
MD5 | b0ac786f800c2b1ae62c931c9a06d34e

Ubuntu Security Notice USN-3294-2

Change Mirror Download

===========================================================================
Ubuntu Security Notice USN-3294-2
August 01, 2017

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

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

- Ubuntu 12.04 ESM

Summary:


A security issues were fixed in Bash.

Software Description:
- bash: GNU Bourne Again SHell

Details:

USN-3294-1 fixed a vulnerability in Bash. This update provides the
corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

It was discovered that Bash incorrectly handled the SHELLOPTS and PS4
environment variables. A local attacker could use this issue to
execute arbitrary code with root privileges. (CVE-2016-7543)

Update instructions:

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

Ubuntu 12.04 ESM:
bash=C2=A04.2-2ubuntu2.7

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

References:
https://www.ubuntu.com/usn/usn-3294-2
https://www.ubuntu.com/usn/usn-3294-1
CVE-2016-7543

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