RHSA-2022:0582 — Security Advisory

Red Hat Security Advisory: ruby:2.6 security update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · February 21, 2022

Updated · November 2, 2026

Topic

An update for the ruby:2.6 module is now available for Red Hat Enterprise Linux 8.2 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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):

  • rubygem-bundler: Dependencies of gems with explicit source may be installed from a different source (CVE-2020-36327)

  • ruby: NUL injection vulnerability of File.fnmatch and File.fnmatch? (CVE-2019-15845)

  • ruby: Regular expression denial of service vulnerability of WEBrick's Digest authentication (CVE-2019-16201)

  • ruby: Code injection via command argument of Shell#test / Shell#[] (CVE-2019-16255)

  • rubygem-json: Unsafe object creation vulnerability in JSON (CVE-2020-10663)

  • ruby: BasicSocket#read_nonblock method leads to information disclosure (CVE-2020-10933)

  • ruby: Potential HTTP request smuggling in WEBrick (CVE-2020-25613)

  • ruby: XML round-trip vulnerability in REXML (CVE-2021-28965)

  • rubygem-rdoc: Command injection vulnerability in RDoc (CVE-2021-31799)

  • ruby: FTP PASV command response can cause Net::FTP to connect to arbitrary host (CVE-2021-31810)

  • ruby: StartTLS stripping vulnerability in Net::IMAP (CVE-2021-32066)

  • ruby: Regular expression denial of service vulnerability of Date parsing methods (CVE-2021-41817)

  • ruby: Cookie prefix spoofing in CGI::Cookie.parse (CVE-2021-41819)

  • ruby: HTTP response splitting in WEBrick (CVE-2019-16254)

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.

Related CVEs

RHSA-2022:0582 — Red Hat Security Advisory: ruby:2.6 security update | PulseLinux