QID 239651

Date Published: 2021-09-24

QID 239651: Red Hat Update for rh-ruby27-ruby (RHSA-2021:3559)

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-ruby27-ruby (2.7.4).

Security Fix(es): rubygem-bundler: Dependencies of gems with explicit source may be installed from a different source (CVE-2020-36327) rubygem-rdoc: Command injection vulnerability in RDoc (CVE-2021-31799) ruby: FTP PASV command response can cause Net::FTP to connect to arbitrary host (CVE-2021-31810) ruby: StartTLS stripping vulnerability in Net::IMAP (CVE-2021-32066)

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

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

On successful exploitation, it could allow an attacker to execute code.

  • CVSS V3 rated as Critical - 8.8 severity.
  • CVSS V2 rated as Critical - 9.3 severity.
    • Solution
    Upgrade to the latest packages which contain a patch. Refer to Applying Package Updates to RHEL system for details.

    Refer to Red Hat security advisory RHSA-2021:3559 to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239651

    CVE-2020-36327 | CVE-2021-31799 | CVE-2021-31810 | CVE-2021-32066 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:3559 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:3559?language=en
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