Ruby: Multiple vulnerabilities

Background

Ruby is an interpreted object-oriented programming language. The elaborate standard library includes an HTTP server (“WEBRick”) and a class for XML parsing (“REXML”).

Description

Multiple vulnerabilities have been discovered in Ruby. Please review the CVE identifiers referenced below for details.

Impact

A remote attacker could execute arbitrary code, have unauthorized access by bypassing intended path matching or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Ruby 2.4.x users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-lang/ruby-2.4.9:2.4"

All Ruby 2.5.x users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=dev-lang/ruby-2.5.7:2.5"