Operating System:

[RedHat]

Published:

26 February 2020

Protect yourself against future threats.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.0687
                           ruby security update
                             26 February 2020

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           ruby
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 7
                   Red Hat Enterprise Linux WS/Desktop 7
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Modify Arbitrary Files          -- Remote with User Interaction
                   Denial of Service               -- Remote/Unauthenticated      
                   Cross-site Scripting            -- Remote with User Interaction
                   Access Confidential Data        -- Remote/Unauthenticated      
                   Reduced Security                -- Remote/Unauthenticated      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1000079 CVE-2018-1000078 CVE-2018-1000077
                   CVE-2018-1000076 CVE-2018-1000075 CVE-2018-1000074
                   CVE-2018-1000073 CVE-2018-8780 CVE-2018-8777

Reference:         ESB-2020.0547
                   ESB-2019.2958
                   ESB-2019.2542
                   ESB-2019.1805

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2020:0591

- --------------------------BEGIN INCLUDED TEXT--------------------

- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: ruby security update
Advisory ID:       RHSA-2020:0591-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:0591
Issue date:        2020-02-25
CVE Names:         CVE-2018-8777 CVE-2018-8780 CVE-2018-1000073 
                   CVE-2018-1000074 CVE-2018-1000075 CVE-2018-1000076 
                   CVE-2018-1000077 CVE-2018-1000078 CVE-2018-1000079 
=====================================================================

1. Summary:

An update for ruby is now available for Red Hat Enterprise Linux 7.4
Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP
Solutions.

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server AUS (v. 7.4) - noarch, x86_64
Red Hat Enterprise Linux Server E4S (v. 7.4) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - noarch, x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.4) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.4) - noarch, x86_64
Red Hat Enterprise Linux Server TUS (v. 7.4) - noarch, x86_64

3. 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: DoS by large request in WEBrick (CVE-2018-8777)

* ruby: Unintentional directory traversal by poisoned NULL byte in Dir
(CVE-2018-8780)

* rubygems: Path traversal when writing to a symlinked basedir outside of
the root (CVE-2018-1000073)

* rubygems: Unsafe Object Deserialization Vulnerability in gem owner
allowing arbitrary code execution on specially crafted YAML
(CVE-2018-1000074)

* rubygems: Improper verification of signatures in tarball allows to
install mis-signed gem (CVE-2018-1000076)

* rubygems: Missing URL validation on spec home attribute allows malicious
gem to set an invalid homepage URL (CVE-2018-1000077)

* rubygems: XSS vulnerability in homepage attribute when displayed via gem
server (CVE-2018-1000078)

* rubygems: Path traversal issue during gem installation allows to write to
arbitrary filesystem locations (CVE-2018-1000079)

* rubygems: Infinite loop vulnerability due to negative size in tar header
causes Denial of Service (CVE-2018-1000075)

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.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

1547418 - CVE-2018-1000073 rubygems: Path traversal when writing to a symlinked basedir outside of the root
1547419 - CVE-2018-1000074 rubygems: Unsafe Object Deserialization Vulnerability in gem owner allowing arbitrary code execution on specially crafted YAML
1547420 - CVE-2018-1000075 rubygems: Infinite loop vulnerability due to negative size in tar header causes Denial of Service
1547421 - CVE-2018-1000076 rubygems: Improper verification of signatures in tarball allows to install mis-signed gem
1547422 - CVE-2018-1000077 rubygems: Missing URL validation on spec home attribute allows malicious gem to set an invalid homepage URL
1547425 - CVE-2018-1000078 rubygems: XSS vulnerability in homepage attribute when displayed via gem server
1547426 - CVE-2018-1000079 rubygems: Path traversal issue during gem installation allows to write to arbitrary filesystem locations
1561949 - CVE-2018-8780 ruby: Unintentional directory traversal by poisoned NULL byte in Dir
1561950 - CVE-2018-8777 ruby: DoS by large request in WEBrick

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.4):

Source:
ruby-2.0.0.648-35.el7_4.src.rpm

noarch:
ruby-irb-2.0.0.648-35.el7_4.noarch.rpm
rubygem-rdoc-4.0.0-35.el7_4.noarch.rpm
rubygems-2.0.14.1-35.el7_4.noarch.rpm

x86_64:
ruby-2.0.0.648-35.el7_4.x86_64.rpm
ruby-debuginfo-2.0.0.648-35.el7_4.i686.rpm
ruby-debuginfo-2.0.0.648-35.el7_4.x86_64.rpm
ruby-libs-2.0.0.648-35.el7_4.i686.rpm
ruby-libs-2.0.0.648-35.el7_4.x86_64.rpm
rubygem-bigdecimal-1.2.0-35.el7_4.x86_64.rpm
rubygem-io-console-0.4.2-35.el7_4.x86_64.rpm
rubygem-json-1.7.7-35.el7_4.x86_64.rpm
rubygem-psych-2.0.0-35.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server E4S (v. 7.4):

Source:
ruby-2.0.0.648-35.el7_4.src.rpm

noarch:
ruby-irb-2.0.0.648-35.el7_4.noarch.rpm
rubygem-rdoc-4.0.0-35.el7_4.noarch.rpm
rubygems-2.0.14.1-35.el7_4.noarch.rpm

ppc64le:
ruby-2.0.0.648-35.el7_4.ppc64le.rpm
ruby-debuginfo-2.0.0.648-35.el7_4.ppc64le.rpm
ruby-libs-2.0.0.648-35.el7_4.ppc64le.rpm
rubygem-bigdecimal-1.2.0-35.el7_4.ppc64le.rpm
rubygem-io-console-0.4.2-35.el7_4.ppc64le.rpm
rubygem-json-1.7.7-35.el7_4.ppc64le.rpm
rubygem-psych-2.0.0-35.el7_4.ppc64le.rpm

x86_64:
ruby-2.0.0.648-35.el7_4.x86_64.rpm
ruby-debuginfo-2.0.0.648-35.el7_4.i686.rpm
ruby-debuginfo-2.0.0.648-35.el7_4.x86_64.rpm
ruby-libs-2.0.0.648-35.el7_4.i686.rpm
ruby-libs-2.0.0.648-35.el7_4.x86_64.rpm
rubygem-bigdecimal-1.2.0-35.el7_4.x86_64.rpm
rubygem-io-console-0.4.2-35.el7_4.x86_64.rpm
rubygem-json-1.7.7-35.el7_4.x86_64.rpm
rubygem-psych-2.0.0-35.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server TUS (v. 7.4):

Source:
ruby-2.0.0.648-35.el7_4.src.rpm

noarch:
ruby-irb-2.0.0.648-35.el7_4.noarch.rpm
rubygem-rdoc-4.0.0-35.el7_4.noarch.rpm
rubygems-2.0.14.1-35.el7_4.noarch.rpm

x86_64:
ruby-2.0.0.648-35.el7_4.x86_64.rpm
ruby-debuginfo-2.0.0.648-35.el7_4.i686.rpm
ruby-debuginfo-2.0.0.648-35.el7_4.x86_64.rpm
ruby-libs-2.0.0.648-35.el7_4.i686.rpm
ruby-libs-2.0.0.648-35.el7_4.x86_64.rpm
rubygem-bigdecimal-1.2.0-35.el7_4.x86_64.rpm
rubygem-io-console-0.4.2-35.el7_4.x86_64.rpm
rubygem-json-1.7.7-35.el7_4.x86_64.rpm
rubygem-psych-2.0.0-35.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.4):

noarch:
ruby-doc-2.0.0.648-35.el7_4.noarch.rpm
rubygem-minitest-4.3.2-35.el7_4.noarch.rpm
rubygem-rake-0.9.6-35.el7_4.noarch.rpm
rubygems-devel-2.0.14.1-35.el7_4.noarch.rpm

x86_64:
ruby-debuginfo-2.0.0.648-35.el7_4.x86_64.rpm
ruby-devel-2.0.0.648-35.el7_4.x86_64.rpm
ruby-tcltk-2.0.0.648-35.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server Optional E4S (v. 7.4):

noarch:
ruby-doc-2.0.0.648-35.el7_4.noarch.rpm
rubygem-minitest-4.3.2-35.el7_4.noarch.rpm
rubygem-rake-0.9.6-35.el7_4.noarch.rpm
rubygems-devel-2.0.14.1-35.el7_4.noarch.rpm

ppc64le:
ruby-debuginfo-2.0.0.648-35.el7_4.ppc64le.rpm
ruby-devel-2.0.0.648-35.el7_4.ppc64le.rpm
ruby-tcltk-2.0.0.648-35.el7_4.ppc64le.rpm

x86_64:
ruby-debuginfo-2.0.0.648-35.el7_4.x86_64.rpm
ruby-devel-2.0.0.648-35.el7_4.x86_64.rpm
ruby-tcltk-2.0.0.648-35.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server Optional TUS (v. 7.4):

noarch:
ruby-doc-2.0.0.648-35.el7_4.noarch.rpm
rubygem-minitest-4.3.2-35.el7_4.noarch.rpm
rubygem-rake-0.9.6-35.el7_4.noarch.rpm
rubygems-devel-2.0.14.1-35.el7_4.noarch.rpm

x86_64:
ruby-debuginfo-2.0.0.648-35.el7_4.x86_64.rpm
ruby-devel-2.0.0.648-35.el7_4.x86_64.rpm
ruby-tcltk-2.0.0.648-35.el7_4.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-8777
https://access.redhat.com/security/cve/CVE-2018-8780
https://access.redhat.com/security/cve/CVE-2018-1000073
https://access.redhat.com/security/cve/CVE-2018-1000074
https://access.redhat.com/security/cve/CVE-2018-1000075
https://access.redhat.com/security/cve/CVE-2018-1000076
https://access.redhat.com/security/cve/CVE-2018-1000077
https://access.redhat.com/security/cve/CVE-2018-1000078
https://access.redhat.com/security/cve/CVE-2018-1000079
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2020 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=1qWo
- -----END PGP SIGNATURE-----

- --
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=k8kj
-----END PGP SIGNATURE-----