RHSA-2019:2028: Moderate: ruby security update

Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks.Security Fix(es): ruby: HTTP response splitting in WEBrick (CVE-2017-17742) ruby: DoS by large request in WEBrick (CVE-2018-8777) ruby: Buffer under-read in String#unpack (CVE-2018-8778) ruby: Unintentional directory traversal by poisoned NULL byte in Dir (CVE-2018-8780) ruby: Tainted flags are not propagated in Array#pack and String#unpack with some directives (CVE-2018-16396) rubygems: Path traversal when writing to a symlinked basedir outside of the root (CVE-2018-1000073) rubygems: Unsafe Object Deserialization Vulnerability in gem owner allowing arbitrary code execution on specially crafted YAML (CVE-2018-1000074) rubygems: Improper verification of signatures in tarball allows to install mis-signed gem (CVE-2018-1000076) rubygems: Missing URL validation on spec home attribute allows malicious gem to set an invalid homepage URL (CVE-2018-1000077) rubygems: XSS vulnerability in homepage attribute when displayed via gem server (CVE-2018-1000078) rubygems: Path traversal issue during gem installation allows to write to arbitrary filesystem locations (CVE-2018-1000079) ruby: Unintentional file and directory creation with directory traversal in tempfile and tmpdir (CVE-2018-6914) ruby: Unintentional socket creation by poisoned NULL byte in UNIXServer and UNIXSocket (CVE-2018-8779) rubygems: Infinite loop vulnerability due to negative size in tar header causes Denial of Service (CVE-2018-1000075) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Additional Changes:For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.