USN-8262-1: Lua vulnerability

Publication date

8 May 2026

Overview

Lua could be made to crash or run programs as your login if it opened a specially crafted file.

Releases


Packages

  • lua5.1 - Lua is an embeddable scripting language

Details

It was discovered that the Lua parser incorrectly handled garbage collection
when processing specially crafted Lua scripts. A remote attacker could possibly
use this issue to cause a denial of service or execute arbitrary code.

It was discovered that the Lua parser incorrectly handled garbage collection
when processing specially crafted Lua scripts. A remote attacker could possibly
use this issue to cause a denial of service or execute arbitrary code.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
16.04 LTS xenial liblua5.1-0 –  5.1.5-8ubuntu1+esm1  
lua5.1 –  5.1.5-8ubuntu1+esm1  

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