{"id":"UBUNTU-CVE-2017-0900","details":"RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications to cause a denial of service attack against RubyGems clients who have issued a `query` command.","modified":"2026-05-20T16:03:21.176799383Z","published":"2017-08-31T00:00:00Z","related":["USN-3439-1","USN-3685-1"],"upstream":["CVE-2017-0900"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-0900"},{"type":"REPORT","url":"https://www.ruby-lang.org/en/news/2017/08/29/multiple-vulnerabilities-in-rubygems/"},{"type":"REPORT","url":"http://blog.rubygems.org/2017/08/27/2.6.13-released.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3439-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3685-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-0900"}],"affected":[{"package":{"name":"ruby1.9.1","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/ruby1.9.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.3.484-2ubuntu1.5"}]}],"versions":["1.9.3.194-8.1ubuntu2","1.9.3.448-1ubuntu1","1.9.3.448-1ubuntu2","1.9.3.484-1ubuntu1","1.9.3.484-1ubuntu2","1.9.3.484-2ubuntu1","1.9.3.484-2ubuntu1.1","1.9.3.484-2ubuntu1.2","1.9.3.484-2ubuntu1.3"],"ecosystem_specific":{"availability":"No 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