Moderate: ruby:2.5 security update

Topic

An update for the ruby:2.5 module is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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):

• 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)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 8 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.6 x86_64
• Red Hat Enterprise Linux Server - TUS 8.6 x86_64

Fixes

• BZ - 2025104 - CVE-2021-41817 ruby: Regular expression denial of service vulnerability of Date parsing methods
• BZ - 2026757 - CVE-2021-41819 ruby: Cookie prefix spoofing in CGI::Cookie.parse

CVEs

• CVE-2021-41817
• CVE-2021-41819

References

• https://access.redhat.com/security/updates/classification/#moderate