RHSA-2021:2230 - Security Advisory

Topic

An update for rh-ruby26-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-ruby26-ruby (2.6.7). (BZ#1701182)

Security Fix(es):

• rubygem-bundler: Insecure permissions on directory in /tmp/ allows for execution of malicious code (CVE-2019-3881)
• 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-ruby26-ruby: Resolv::DNS: timeouts if multiple IPv6 name servers are given and address contains leading zero [rhscl-3] (BZ#1950331)

Additional Changes:

For detailed information on changes in this release, see the Red Hat Software Collections 3.7 Release Notes linked from 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 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 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 - 1651826 - CVE-2019-3881 rubygem-bundler: Insecure permissions on directory in /tmp/ allows for execution of malicious code
• 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 - 1950331 - rh-ruby26-ruby: Resolv::DNS: timeouts if multiple IPv6 name servers are given and address contains leading zero [rhscl-3]

CVEs

• CVE-2019-3881
• 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
• https://access.redhat.com/documentation/en-us/red_hat_software_collections/3/html/3.7_release_notes/