RHSA-2021:2104 - Security Advisory

Topic

An update for rh-ruby25-ruby is now available for Red Hat Software Collections.

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.

The following packages have been upgraded to a later upstream version: rh-ruby25-ruby (2.5.9). (BZ#1952998)

Security Fix(es):

• 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)
• 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.

Bug Fix(es):

• rh-ruby25-ruby: Resolv::DNS: timeouts if multiple IPv6 name servers are given and address contains leading zero [rhscl-3] (BZ#1953001)

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 Software Collections (for RHEL Server) 1 for RHEL 7.7 x86_64
• Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7.7 s390x
• Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7.7 ppc64le
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.6 x86_64
• Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7.6 s390x
• Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7.6 ppc64le
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7 s390x
• Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7 ppc64le
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 7 x86_64

Fixes

• BZ - 1773728 - CVE-2019-16201 ruby: Regular expression denial of service vulnerability of WEBrick's Digest authentication
• BZ - 1789407 - CVE-2019-15845 ruby: NUL injection vulnerability of File.fnmatch and File.fnmatch?
• BZ - 1789556 - CVE-2019-16254 ruby: HTTP response splitting in WEBrick
• BZ - 1793683 - CVE-2019-16255 ruby: Code injection via command argument of Shell#test / Shell#[]
• BZ - 1827500 - CVE-2020-10663 rubygem-json: Unsafe object creation vulnerability in JSON
• BZ - 1833291 - CVE-2020-10933 ruby: BasicSocket#read_nonblock method leads to information disclosure
• BZ - 1883623 - CVE-2020-25613 ruby: Potential HTTP request smuggling in WEBrick
• BZ - 1947526 - CVE-2021-28965 ruby: XML round-trip vulnerability in REXML
• BZ - 1952998 - Rebase to the latest Ruby 2.5 point release [rhscl-3] [rhscl-3.6.z]

CVEs

• CVE-2019-15845
• CVE-2019-16201
• CVE-2019-16254
• CVE-2019-16255
• CVE-2020-10663
• CVE-2020-10933
• CVE-2020-25613
• CVE-2021-28965

References

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