Ubuntu Security Notice 3941-1 - Fady Othman discovered that Lua incorrectly handled certain scripts. An attacker could possibly use this issue to cause a denial of service.
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Ubuntu Security Notice USN-3941-1
April 08, 2019
lua5.3 vulnerability
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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