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Red Hat Security Advisory 2019-2028-01

Red Hat Security Advisory 2019-2028-01
Posted Aug 6, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2028-01 - Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to perform system management tasks. Issues addressed include code execution, cross site scripting, denial of service, deserialization, and traversal vulnerabilities.

tags | advisory, denial of service, vulnerability, code execution, xss, ruby
systems | linux, redhat
advisories | CVE-2017-17742, CVE-2018-1000073, CVE-2018-1000074, CVE-2018-1000075, CVE-2018-1000076, CVE-2018-1000077, CVE-2018-1000078, CVE-2018-1000079, CVE-2018-16396, CVE-2018-6914, CVE-2018-8777, CVE-2018-8778, CVE-2018-8779, CVE-2018-8780
MD5 | f6b2ba1c5cc39077bb31fecb8cb2d2f1

Red Hat Security Advisory 2019-2028-01

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

Synopsis: Moderate: ruby security update
Advisory ID: RHSA-2019:2028-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2028
Issue date: 2019-08-06
CVE Names: CVE-2017-17742 CVE-2018-6914 CVE-2018-8777
CVE-2018-8778 CVE-2018-8779 CVE-2018-8780
CVE-2018-16396 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.

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 Client (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - 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: HTTP response splitting in WEBrick (CVE-2017-17742)

* ruby: DoS by large request in WEBrick (CVE-2018-8777)

* ruby: Buffer under-read in String#unpack (CVE-2018-8778)

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

* ruby: Tainted flags are not propagated in Array#pack and String#unpack
with some directives (CVE-2018-16396)

* 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)

* ruby: Unintentional file and directory creation with directory traversal
in tempfile and tmpdir (CVE-2018-6914)

* ruby: Unintentional socket creation by poisoned NULL byte in UNIXServer
and UNIXSocket (CVE-2018-8779)

* 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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.7 Release Notes linked from 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
1561947 - CVE-2018-6914 ruby: Unintentional file and directory creation with directory traversal in tempfile and tmpdir
1561948 - CVE-2018-8779 ruby: Unintentional socket creation by poisoned NULL byte in UNIXServer and UNIXSocket
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
1561952 - CVE-2017-17742 ruby: HTTP response splitting in WEBrick
1561953 - CVE-2018-8778 ruby: Buffer under-read in String#unpack
1585737 - Backport %gemspec_{add,remove}_file macros
1601934 - Trace on non existent home directory
1643089 - CVE-2018-16396 ruby: Tainted flags are not propagated in Array#pack and String#unpack with some directives

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
ruby-2.0.0.648-36.el7.src.rpm

noarch:
ruby-irb-2.0.0.648-36.el7.noarch.rpm
rubygem-rdoc-4.0.0-36.el7.noarch.rpm
rubygems-2.0.14.1-36.el7.noarch.rpm

x86_64:
ruby-2.0.0.648-36.el7.x86_64.rpm
ruby-debuginfo-2.0.0.648-36.el7.i686.rpm
ruby-debuginfo-2.0.0.648-36.el7.x86_64.rpm
ruby-libs-2.0.0.648-36.el7.i686.rpm
ruby-libs-2.0.0.648-36.el7.x86_64.rpm
rubygem-bigdecimal-1.2.0-36.el7.x86_64.rpm
rubygem-io-console-0.4.2-36.el7.x86_64.rpm
rubygem-json-1.7.7-36.el7.x86_64.rpm
rubygem-psych-2.0.0-36.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

noarch:
ruby-doc-2.0.0.648-36.el7.noarch.rpm
rubygem-minitest-4.3.2-36.el7.noarch.rpm
rubygem-rake-0.9.6-36.el7.noarch.rpm
rubygems-devel-2.0.14.1-36.el7.noarch.rpm

x86_64:
ruby-debuginfo-2.0.0.648-36.el7.x86_64.rpm
ruby-devel-2.0.0.648-36.el7.x86_64.rpm
ruby-tcltk-2.0.0.648-36.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
ruby-2.0.0.648-36.el7.src.rpm

noarch:
ruby-irb-2.0.0.648-36.el7.noarch.rpm
rubygem-rdoc-4.0.0-36.el7.noarch.rpm
rubygems-2.0.14.1-36.el7.noarch.rpm

x86_64:
ruby-2.0.0.648-36.el7.x86_64.rpm
ruby-debuginfo-2.0.0.648-36.el7.i686.rpm
ruby-debuginfo-2.0.0.648-36.el7.x86_64.rpm
ruby-libs-2.0.0.648-36.el7.i686.rpm
ruby-libs-2.0.0.648-36.el7.x86_64.rpm
rubygem-bigdecimal-1.2.0-36.el7.x86_64.rpm
rubygem-io-console-0.4.2-36.el7.x86_64.rpm
rubygem-json-1.7.7-36.el7.x86_64.rpm
rubygem-psych-2.0.0-36.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

noarch:
ruby-doc-2.0.0.648-36.el7.noarch.rpm
rubygem-minitest-4.3.2-36.el7.noarch.rpm
rubygem-rake-0.9.6-36.el7.noarch.rpm
rubygems-devel-2.0.14.1-36.el7.noarch.rpm

x86_64:
ruby-debuginfo-2.0.0.648-36.el7.x86_64.rpm
ruby-devel-2.0.0.648-36.el7.x86_64.rpm
ruby-tcltk-2.0.0.648-36.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
ruby-2.0.0.648-36.el7.src.rpm

noarch:
ruby-irb-2.0.0.648-36.el7.noarch.rpm
rubygem-rdoc-4.0.0-36.el7.noarch.rpm
rubygems-2.0.14.1-36.el7.noarch.rpm

ppc64:
ruby-2.0.0.648-36.el7.ppc64.rpm
ruby-debuginfo-2.0.0.648-36.el7.ppc.rpm
ruby-debuginfo-2.0.0.648-36.el7.ppc64.rpm
ruby-libs-2.0.0.648-36.el7.ppc.rpm
ruby-libs-2.0.0.648-36.el7.ppc64.rpm
rubygem-bigdecimal-1.2.0-36.el7.ppc64.rpm
rubygem-io-console-0.4.2-36.el7.ppc64.rpm
rubygem-json-1.7.7-36.el7.ppc64.rpm
rubygem-psych-2.0.0-36.el7.ppc64.rpm

ppc64le:
ruby-2.0.0.648-36.el7.ppc64le.rpm
ruby-debuginfo-2.0.0.648-36.el7.ppc64le.rpm
ruby-libs-2.0.0.648-36.el7.ppc64le.rpm
rubygem-bigdecimal-1.2.0-36.el7.ppc64le.rpm
rubygem-io-console-0.4.2-36.el7.ppc64le.rpm
rubygem-json-1.7.7-36.el7.ppc64le.rpm
rubygem-psych-2.0.0-36.el7.ppc64le.rpm

s390x:
ruby-2.0.0.648-36.el7.s390x.rpm
ruby-debuginfo-2.0.0.648-36.el7.s390.rpm
ruby-debuginfo-2.0.0.648-36.el7.s390x.rpm
ruby-libs-2.0.0.648-36.el7.s390.rpm
ruby-libs-2.0.0.648-36.el7.s390x.rpm
rubygem-bigdecimal-1.2.0-36.el7.s390x.rpm
rubygem-io-console-0.4.2-36.el7.s390x.rpm
rubygem-json-1.7.7-36.el7.s390x.rpm
rubygem-psych-2.0.0-36.el7.s390x.rpm

x86_64:
ruby-2.0.0.648-36.el7.x86_64.rpm
ruby-debuginfo-2.0.0.648-36.el7.i686.rpm
ruby-debuginfo-2.0.0.648-36.el7.x86_64.rpm
ruby-libs-2.0.0.648-36.el7.i686.rpm
ruby-libs-2.0.0.648-36.el7.x86_64.rpm
rubygem-bigdecimal-1.2.0-36.el7.x86_64.rpm
rubygem-io-console-0.4.2-36.el7.x86_64.rpm
rubygem-json-1.7.7-36.el7.x86_64.rpm
rubygem-psych-2.0.0-36.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

noarch:
ruby-doc-2.0.0.648-36.el7.noarch.rpm
rubygem-minitest-4.3.2-36.el7.noarch.rpm
rubygem-rake-0.9.6-36.el7.noarch.rpm
rubygems-devel-2.0.14.1-36.el7.noarch.rpm

ppc64:
ruby-debuginfo-2.0.0.648-36.el7.ppc64.rpm
ruby-devel-2.0.0.648-36.el7.ppc64.rpm
ruby-tcltk-2.0.0.648-36.el7.ppc64.rpm

ppc64le:
ruby-debuginfo-2.0.0.648-36.el7.ppc64le.rpm
ruby-devel-2.0.0.648-36.el7.ppc64le.rpm
ruby-tcltk-2.0.0.648-36.el7.ppc64le.rpm

s390x:
ruby-debuginfo-2.0.0.648-36.el7.s390x.rpm
ruby-devel-2.0.0.648-36.el7.s390x.rpm
ruby-tcltk-2.0.0.648-36.el7.s390x.rpm

x86_64:
ruby-debuginfo-2.0.0.648-36.el7.x86_64.rpm
ruby-devel-2.0.0.648-36.el7.x86_64.rpm
ruby-tcltk-2.0.0.648-36.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
ruby-2.0.0.648-36.el7.src.rpm

noarch:
ruby-irb-2.0.0.648-36.el7.noarch.rpm
rubygem-rdoc-4.0.0-36.el7.noarch.rpm
rubygems-2.0.14.1-36.el7.noarch.rpm

x86_64:
ruby-2.0.0.648-36.el7.x86_64.rpm
ruby-debuginfo-2.0.0.648-36.el7.i686.rpm
ruby-debuginfo-2.0.0.648-36.el7.x86_64.rpm
ruby-libs-2.0.0.648-36.el7.i686.rpm
ruby-libs-2.0.0.648-36.el7.x86_64.rpm
rubygem-bigdecimal-1.2.0-36.el7.x86_64.rpm
rubygem-io-console-0.4.2-36.el7.x86_64.rpm
rubygem-json-1.7.7-36.el7.x86_64.rpm
rubygem-psych-2.0.0-36.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

noarch:
ruby-doc-2.0.0.648-36.el7.noarch.rpm
rubygem-minitest-4.3.2-36.el7.noarch.rpm
rubygem-rake-0.9.6-36.el7.noarch.rpm
rubygems-devel-2.0.14.1-36.el7.noarch.rpm

x86_64:
ruby-debuginfo-2.0.0.648-36.el7.x86_64.rpm
ruby-devel-2.0.0.648-36.el7.x86_64.rpm
ruby-tcltk-2.0.0.648-36.el7.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-2017-17742
https://access.redhat.com/security/cve/CVE-2018-6914
https://access.redhat.com/security/cve/CVE-2018-8777
https://access.redhat.com/security/cve/CVE-2018-8778
https://access.redhat.com/security/cve/CVE-2018-8779
https://access.redhat.com/security/cve/CVE-2018-8780
https://access.redhat.com/security/cve/CVE-2018-16396
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
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index

8. Contact:

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

Copyright 2019 Red Hat, Inc.
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