USN-3941-1: Lua vulnerability

USN-3941-1: Lua vulnerability

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2019-6706

Source: USN-3941-1: Lua vulnerability