Ruby 2.5.1 已正式发布，本次更新包含 bug 修复和安全修复。 CVE-2017-17742: HTTP response splitting in WEBrick CVE-2018-6914: Unintentional file and directory creation with directory traversal in tempfile and tmpdir CVE-2018-8777: DoS by large request in WEBrick CVE-2018-8778: Buffer under-read in String#unpack CVE-2018-8779: Unintentional socket creation by poisoned NUL byte in UNIXServer and UNIXSocket CVE-2018-8780: Unintentional directory traversal by poisoned NUL byte in Dir Multiple vulnerabilities in RubyGems 关于安全修复的内容， 查看 commit logs 了解具体细节。 下载地址和更新说明请查看：https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/ Ruby 2.5.1 正式发布，包含 bug 修复和安全修复下载地址
