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Red Hat Enterprise Linux 7.4 RHSA-2020-2769-01 Important: Ruby Security Fix

red hat
Calendar Grey June 30, 2020
Dist Redhat Esm H88
Important security update notice for Ruby on Red Hat Enterprise Linux 7.4. Implement essential patches to safeguard your systems.
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 Lin...

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

Summary

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):
* rubygems: Installing a malicious gem may lead to arbitrary code execution (CVE-2019-8324)
* ruby: Tainted flags are not propagated in Array#pack and String#unpack with some directives (CVE-2018-16396)
* rubygems: Escape sequence injection vulnerability in verbose (CVE-2019-8321)
* rubygems: Escape sequence injection vulnerability in gem owner (CVE-2019-8322)
* rubygems: Escape sequence injection vulnerability in API response handling (CVE-2019-8323)
* rubygems: Escape sequence injection vulnerability in errors(CVE-2019-8325)
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.

Topics%20covered

Topics Covered

security advisory security update Red Hat arbitrary code execution important ruby escape sequence injection

References

https://access.redhat.com/security/cve/CVE-2018-16396 https://access.redhat.com/security/cve/CVE-2019-8321 https://access.redhat.com/security/cve/CVE-2019-8322 https://access.redhat.com/security/cve/CVE-2019-8323 https://access.redhat.com/security/cve/CVE-2019-8324 https://access.redhat.com/security/cve/CVE-2019-8325 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Server AUS (v. 7.4):
Source: ruby-2.0.0.648-37.el7_4.src.rpm
noarch: ruby-irb-2.0.0.648-37.el7_4.noarch.rpm rubygem-rdoc-4.0.0-37.el7_4.noarch.rpm rubygems-2.0.14.1-37.el7_4.noarch.rpm
x86_64: ruby-2.0.0.648-37.el7_4.x86_64.rpm ruby-debuginfo-2.0.0.648-37.el7_4.i686.rpm ruby-debuginfo-2.0.0.648-37.el7_4.x86_64.rpm ruby-libs-2.0.0.648-37.el7_4.i686.rpm ruby-libs-2.0.0.648-37.el7_4.x86_64.rpm rubygem-bigdecimal-1.2.0-37.el7_4.x86_64.rpm rubygem-io-console-0.4.2-37.el7_4.x86_64.rpm rubygem-json-1.7.7-37.el7_4.x86_64.rpm rubygem-psych-2.0.0-37.el7_4.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.4):
Source: ruby-2.0.0.648-37.el7_4.src.rpm
noarch: ruby-irb-2.0.0.648-37.el7_4.noarch.rpm rubygem-rdoc-4.0.0-37.el7_4.noarch.rpm rubygems-2.0.14.1-37.el7_4.noarch.rpm
ppc64le: ruby-2.0.0.648-37.el7_4.ppc64le.rpm ruby-debuginfo-2.0.0.648-37.el7_4.ppc64le.rpm ruby-libs-2.0.0.648-37.el7_4.ppc64le.rpm rubygem-bigdecimal-1.2.0-37.el7_4.ppc64le.rpm rubygem-io-console-0.4.2-37.el7_4.ppc64le.rpm rubygem-json-1.7.7-37.el7_4.ppc64le.rpm rubygem-psych-2.0.0-37.el7_4.ppc64le.rpm
x86_64: ruby-2.0.0.648-37.el7_4.x86_64.rpm ruby-debuginfo-2.0.0.648-37.el7_4.i686.rpm ruby-debuginfo-2.0.0.648-37.el7_4.x86_64.rpm ruby-libs-2.0.0.648-37.el7_4.i686.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2769-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2769
Issue date: 2020-06-30

Topic

An update for ruby is now available for Red Hat Enterprise Linux 7.4Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended UpdateSupport, and Red Hat Enterprise Linux 7.4 Update Services for SAPSolutions.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat arbitrary code execution important ruby escape sequence injection

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

Bugs Fixed

1643089 - CVE-2018-16396 ruby: Tainted flags are not propagated in Array#pack and String#unpack with some directives

1692514 - CVE-2019-8321 rubygems: Escape sequence injection vulnerability in verbose

1692516 - CVE-2019-8322 rubygems: Escape sequence injection vulnerability in gem owner

1692519 - CVE-2019-8323 rubygems: Escape sequence injection vulnerability in API response handling

1692520 - CVE-2019-8324 rubygems: Installing a malicious gem may lead to arbitrary code execution

1692522 - CVE-2019-8325 rubygems: Escape sequence injection vulnerability in errors

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