Fedora Fedora 22 Security Update: rubygems-2.4.8-100.fc22 July 31, 2015 007admin Leave a comment Resolved Bugs1236116 – CVE-2015-3900 rubygems: DNS hijacking vulnerability in api_endpoint()1236117 – CVE-2015-3900 rubygems: DNS hijacking vulnerability in api_endpoint() [fedora-all]<brUpdate to RubyGems 2.4.8.