1. Ubuntu Security Notices
  2. USN-6916-1

USN-6916-1: Lua vulnerabilities

Publication date

29 July 2024

Overview

Several security issues were fixed in Lua.

Releases

Packages

  • lua5.4 - Simple, extensible, embeddable programming language

Details

It was discovered that Lua did not properly generate code when “_ENV” is
constant. An attacker could possibly use this issue to cause a denial of
service or execute arbitrary unstrusted lua code. (CVE-2022-28805)

It was discovered that Lua did not properly handle C stack overflows during
error handling. An attacker could possibly use this issue to cause a denial
of service. (CVE-2022-33099)

It was discovered that Lua did not properly generate code when “_ENV” is
constant. An attacker could possibly use this issue to cause a denial of
service or execute arbitrary unstrusted lua code. (CVE-2022-28805)

It was discovered that Lua did not properly handle C stack overflows during
error handling. An attacker could possibly use this issue to cause a denial
of service. (CVE-2022-33099)

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
22.04 jammy lua5.4 –  5.4.4-1ubuntu0.1~esm1  

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›