RHSA-2020:1963 - Security Advisory

Topic

An update for ruby is now available for Red Hat Enterprise Linux 7.5 Extended Update Support.

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: HTTP response splitting in WEBrick (CVE-2017-17742)
• ruby: Buffer under-read in String#unpack (CVE-2018-8778)

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 - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.5 s390x
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.5 ppc64
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.5 ppc64le
• Red Hat Enterprise Linux EUS Compute Node 7.5 x86_64

Fixes

• BZ - 1561952 - CVE-2017-17742 ruby: HTTP response splitting in WEBrick
• BZ - 1561953 - CVE-2018-8778 ruby: Buffer under-read in String#unpack

CVEs

• CVE-2017-17742
• CVE-2018-8778

References

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