RHSA-2021:3020 — Security Advisory
Red Hat Security Advisory: ruby:2.7 security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · August 6, 2021
Updated · November 1, 2026
Topic
An update for the ruby:2.7 module is now available for Red Hat Enterprise Linux 8.
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)
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rubygem-rdoc: Command injection vulnerability in RDoc (CVE-2021-31799)
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ruby: FTP PASV command response can cause Net::FTP to connect to arbitrary host (CVE-2021-31810)
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ruby: StartTLS stripping vulnerability in Net::IMAP (CVE-2021-32066)
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.