Ubuntu 22.10: USN-5806-3 High: Ruby Unsafe Input Vulnerability

ubuntu

January 23, 2023

Ruby could allow for internet traffic to be modified if a vulnerable application processed malicious user input.

Summary

Ruby could allow for internet traffic to be modified if

a vulnerable application processed malicious user input.

Software Description:

- ruby3.0: Interpreter of object-oriented scripting language Ruby

- ruby2.5: Object-oriented scripting language

Details:

USN-5806-1 fixed vulnerabilities in Ruby. This update fixes the problem

for Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.10.

Original advisory details:

Hiroshi Tokumaru discovered that Ruby did not properly handle certain

user input for applications which generate HTTP responses using cgi gem.

An attacker could possibly use this issue to maliciously modify the

response a user would receive from a vulnerable application.

Topics Covered

security advisory critical software update Ubuntu Ruby traffic modification malicious input

Update Instructions

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

Ubuntu 22.10:
  libruby3.0                      3.0.4-7ubuntu0.1
  ruby3.0                         3.0.4-7ubuntu0.1

Ubuntu 22.04 LTS:
  libruby3.0                      3.0.2-7ubuntu2.3
  ruby3.0                         3.0.2-7ubuntu2.3

Ubuntu 18.04 LTS:
  libruby2.5                      2.5.1-1ubuntu1.13
  ruby2.5                         2.5.1-1ubuntu1.13

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