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Ubuntu 18.04 LTS USN-3941-1 Critical: Lua Denial Of Service

ubuntu
Calendar Grey April 8, 2019
Dist Ubuntu Esm H88
Ubuntu Security Announcement USN-3941-1 has been issued regarding a vulnerability in lua5.3 that may result in denial-of-service (DoS) attacks. Ensure you update immediately!
Lua could be made to crash if it received a specially crafted script.

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.

Topics%20covered

Topics Covered

security advisory denial of service software update ubuntu lua

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://ubuntu.com/security/notices/USN-3941-1

  CVE-2019-6706

Severity
critical
Lowest
Low
Medium
High
Critical

April 08, 2019

Topics%20covered

Topics Covered

security advisory denial of service software update ubuntu lua

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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