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.
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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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