[USN-3941-1] Lua vulnerability

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[USN-3941-1] Lua vulnerability

Leonidas S. Barbosa
==========================================================================
Ubuntu Security Notice USN-3941-1
April 08, 2019

lua5.3 vulnerability
==========================================================================

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

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Lua could be made to crash if it received a specially crafted script.

Software Description:
- lua5.3: Simple, extensible, embeddable programming language

Details:

Fady Othman discovered that Lua incorrectly handled certain scripts.
An attacker could possibly use this issue to cause a denial of service.

Update instructions:

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

Ubuntu 18.10:
  lua5.3                          5.3.3-1ubuntu0.18.10.1

Ubuntu 18.04 LTS:
  lua5.3                          5.3.3-1ubuntu0.18.04.1

Ubuntu 16.04 LTS:
  lua5.3                          5.3.1-1ubuntu2.1

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

References:
  https://usn.ubuntu.com/usn/usn-3941-1
  CVE-2019-6706

Package Information:
  https://launchpad.net/ubuntu/+source/lua5.3/5.3.3-1ubuntu0.18.10.1
  https://launchpad.net/ubuntu/+source/lua5.3/5.3.3-1ubuntu0.18.04.1
  https://launchpad.net/ubuntu/+source/lua5.3/5.3.1-1ubuntu2.1
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