Ubuntu 22.04 LTS USN-5462-1 Critical: Ruby Execution Exposure

ubuntu

June 6, 2022

Several security issues were fixed in Ruby.

Summary

Several security issues were fixed in Ruby.

Software Description:

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

- ruby2.7: Object-oriented scripting language

- ruby2.5: Object-oriented scripting language

Details:

It was discovered that Ruby incorrectly handled certain regular expressions.

An attacker could possibly use this issue to execute arbitrary code. This

issue only affected Ubuntu 22.04 LTS. (CVE-2022-28738)

It was discovered that Ruby incorrectly handled certain inputs.

An attacker could possibly use this issue to expose sensitive information.

(CVE-2022-28739)

Topics Covered

security advisory critical issue ubuntu ruby update instruction execution exposure

Update Instructions

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

Ubuntu 22.04 LTS:
  libruby3.0                      3.0.2-7ubuntu2.1
  ruby3.0                         3.0.2-7ubuntu2.1

Ubuntu 21.10:
  libruby2.7                      2.7.4-1ubuntu3.2
  ruby2.7                         2.7.4-1ubuntu3.2

Ubuntu 20.04 LTS:
  libruby2.7                      2.7.0-5ubuntu1.7
  ruby2.7                         2.7.0-5ubuntu1.7

Ubuntu 18.04 LTS:
  libruby2.5                      2.5.1-1ubuntu1.12
  ruby2.5                         2.5.1-1ubuntu1.12

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