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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.3238 Moderate: rh-ruby24-ruby security, bug fix, and enhancement update 20 December 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Ruby Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Red Hat Enterprise Linux EUS 6 Red Hat Enterprise Linux EUS 7 Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Create Arbitrary Files -- Remote with User Interaction Denial of Service -- Remote/Unauthenticated Provide Misleading Information -- Remote with User Interaction Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-14064 CVE-2017-10784 CVE-2017-0903 CVE-2017-0902 CVE-2017-0901 CVE-2017-0900 CVE-2017-0899 CVE-2017-0898 Reference: ASB-2017.0137 ESB-2017.2869 ESB-2017.2557 Original Bulletin: https://access.redhat.com/errata/RHSA-2017:3485 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: rh-ruby24-ruby security, bug fix, and enhancement update Advisory ID: RHSA-2017:3485-01 Product: Red Hat Software Collections Advisory URL: https://access.redhat.com/errata/RHSA-2017:3485 Issue date: 2017-12-19 CVE Names: CVE-2017-0898 CVE-2017-0899 CVE-2017-0900 CVE-2017-0901 CVE-2017-0902 CVE-2017-0903 CVE-2017-10784 CVE-2017-14064 ===================================================================== 1. Summary: An update for rh-ruby24-ruby is now available for Red Hat Software Collections. 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 Software Collections for Red Hat Enterprise Linux Server (v. 6) - noarch, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - noarch, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) - noarch, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) - noarch, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) - noarch, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) - noarch, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (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. The following packages have been upgraded to a later upstream version: rh-ruby24-ruby (2.4.2). (BZ#1506785) Security Fix(es): * A buffer underflow was found in ruby's sprintf function. An attacker, with ability to control its format string parameter, could send a specially crafted string that would disclose heap memory or crash the interpreter. (CVE-2017-0898) * It was found that rubygems did not sanitize gem names during installation of a given gem. A specially crafted gem could use this flaw to install files outside of the regular directory. (CVE-2017-0901) * A vulnerability was found where rubygems did not sanitize DNS responses when requesting the hostname of the rubygems server for a domain, via a _rubygems._tcp DNS SRV query. An attacker with the ability to manipulate DNS responses could direct the gem command towards a different domain. (CVE-2017-0902) * A vulnerability was found where the rubygems module was vulnerable to an unsafe YAML deserialization when inspecting a gem. Applications inspecting gem files without installing them can be tricked to execute arbitrary code in the context of the ruby interpreter. (CVE-2017-0903) * It was found that WEBrick did not sanitize all its log messages. If logs were printed in a terminal, an attacker could interact with the terminal via the use of escape sequences. (CVE-2017-10784) * A vulnerability was found where rubygems did not properly sanitize gems' specification text. A specially crafted gem could interact with the terminal via the use of escape sequences. (CVE-2017-0899) * It was found that rubygems could use an excessive amount of CPU while parsing a sufficiently long gem summary. A specially crafted gem from a gem repository could freeze gem commands attempting to parse its summary. (CVE-2017-0900) * A buffer overflow vulnerability was found in the JSON extension of ruby. An attacker with the ability to pass a specially crafted JSON input to the extension could use this flaw to expose the interpreter's heap memory. (CVE-2017-14064) 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/): 1487552 - CVE-2017-14064 ruby: Arbitrary heap exposure during a JSON.generate call 1487587 - CVE-2017-0901 rubygems: Arbitrary file overwrite due to incorrect validation of specification name 1487588 - CVE-2017-0900 rubygems: No size limit in summary length of gem spec 1487589 - CVE-2017-0902 rubygems: DNS hijacking vulnerability 1487590 - CVE-2017-0899 rubygems: Escape sequence in the "summary" field of gemspec 1492012 - CVE-2017-10784 ruby: Escape sequence injection vulnerability in the Basic authentication of WEBrick 1492015 - CVE-2017-0898 ruby: Buffer underrun vulnerability in Kernel.sprintf 1500488 - CVE-2017-0903 rubygems: Unsafe object deserialization through YAML formatted gem specifications 1506785 - Rebase to the latest Ruby 2.4 point release [rhscl-3.0.z] 6. Package List: Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6): Source: rh-ruby24-ruby-2.4.2-86.el6.src.rpm noarch: rh-ruby24-ruby-doc-2.4.2-86.el6.noarch.rpm rh-ruby24-ruby-irb-2.4.2-86.el6.noarch.rpm rh-ruby24-rubygem-minitest-5.10.1-86.el6.noarch.rpm rh-ruby24-rubygem-power_assert-0.4.1-86.el6.noarch.rpm rh-ruby24-rubygem-rake-12.0.0-86.el6.noarch.rpm rh-ruby24-rubygem-rdoc-5.0.0-86.el6.noarch.rpm rh-ruby24-rubygem-test-unit-3.2.3-86.el6.noarch.rpm rh-ruby24-rubygem-xmlrpc-0.2.1-86.el6.noarch.rpm rh-ruby24-rubygems-2.6.14-86.el6.noarch.rpm rh-ruby24-rubygems-devel-2.6.14-86.el6.noarch.rpm x86_64: rh-ruby24-ruby-2.4.2-86.el6.x86_64.rpm rh-ruby24-ruby-debuginfo-2.4.2-86.el6.x86_64.rpm rh-ruby24-ruby-devel-2.4.2-86.el6.x86_64.rpm rh-ruby24-ruby-libs-2.4.2-86.el6.x86_64.rpm rh-ruby24-rubygem-bigdecimal-1.3.0-86.el6.x86_64.rpm rh-ruby24-rubygem-did_you_mean-1.1.0-86.el6.x86_64.rpm rh-ruby24-rubygem-io-console-0.4.6-86.el6.x86_64.rpm rh-ruby24-rubygem-json-2.0.4-86.el6.x86_64.rpm rh-ruby24-rubygem-net-telnet-0.1.1-86.el6.x86_64.rpm rh-ruby24-rubygem-openssl-2.0.5-86.el6.x86_64.rpm rh-ruby24-rubygem-psych-2.2.2-86.el6.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7): Source: rh-ruby24-ruby-2.4.2-86.el6.src.rpm noarch: rh-ruby24-ruby-doc-2.4.2-86.el6.noarch.rpm rh-ruby24-ruby-irb-2.4.2-86.el6.noarch.rpm rh-ruby24-rubygem-minitest-5.10.1-86.el6.noarch.rpm rh-ruby24-rubygem-power_assert-0.4.1-86.el6.noarch.rpm rh-ruby24-rubygem-rake-12.0.0-86.el6.noarch.rpm rh-ruby24-rubygem-rdoc-5.0.0-86.el6.noarch.rpm rh-ruby24-rubygem-test-unit-3.2.3-86.el6.noarch.rpm rh-ruby24-rubygem-xmlrpc-0.2.1-86.el6.noarch.rpm rh-ruby24-rubygems-2.6.14-86.el6.noarch.rpm rh-ruby24-rubygems-devel-2.6.14-86.el6.noarch.rpm x86_64: rh-ruby24-ruby-2.4.2-86.el6.x86_64.rpm rh-ruby24-ruby-debuginfo-2.4.2-86.el6.x86_64.rpm rh-ruby24-ruby-devel-2.4.2-86.el6.x86_64.rpm rh-ruby24-ruby-libs-2.4.2-86.el6.x86_64.rpm rh-ruby24-rubygem-bigdecimal-1.3.0-86.el6.x86_64.rpm rh-ruby24-rubygem-did_you_mean-1.1.0-86.el6.x86_64.rpm rh-ruby24-rubygem-io-console-0.4.6-86.el6.x86_64.rpm rh-ruby24-rubygem-json-2.0.4-86.el6.x86_64.rpm rh-ruby24-rubygem-net-telnet-0.1.1-86.el6.x86_64.rpm rh-ruby24-rubygem-openssl-2.0.5-86.el6.x86_64.rpm rh-ruby24-rubygem-psych-2.2.2-86.el6.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6): Source: rh-ruby24-ruby-2.4.2-86.el6.src.rpm noarch: rh-ruby24-ruby-doc-2.4.2-86.el6.noarch.rpm rh-ruby24-ruby-irb-2.4.2-86.el6.noarch.rpm rh-ruby24-rubygem-minitest-5.10.1-86.el6.noarch.rpm rh-ruby24-rubygem-power_assert-0.4.1-86.el6.noarch.rpm rh-ruby24-rubygem-rake-12.0.0-86.el6.noarch.rpm rh-ruby24-rubygem-rdoc-5.0.0-86.el6.noarch.rpm rh-ruby24-rubygem-test-unit-3.2.3-86.el6.noarch.rpm rh-ruby24-rubygem-xmlrpc-0.2.1-86.el6.noarch.rpm rh-ruby24-rubygems-2.6.14-86.el6.noarch.rpm rh-ruby24-rubygems-devel-2.6.14-86.el6.noarch.rpm x86_64: rh-ruby24-ruby-2.4.2-86.el6.x86_64.rpm rh-ruby24-ruby-debuginfo-2.4.2-86.el6.x86_64.rpm rh-ruby24-ruby-devel-2.4.2-86.el6.x86_64.rpm rh-ruby24-ruby-libs-2.4.2-86.el6.x86_64.rpm rh-ruby24-rubygem-bigdecimal-1.3.0-86.el6.x86_64.rpm rh-ruby24-rubygem-did_you_mean-1.1.0-86.el6.x86_64.rpm rh-ruby24-rubygem-io-console-0.4.6-86.el6.x86_64.rpm rh-ruby24-rubygem-json-2.0.4-86.el6.x86_64.rpm rh-ruby24-rubygem-net-telnet-0.1.1-86.el6.x86_64.rpm rh-ruby24-rubygem-openssl-2.0.5-86.el6.x86_64.rpm rh-ruby24-rubygem-psych-2.2.2-86.el6.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7): Source: rh-ruby24-ruby-2.4.2-86.el7.src.rpm noarch: rh-ruby24-ruby-doc-2.4.2-86.el7.noarch.rpm rh-ruby24-ruby-irb-2.4.2-86.el7.noarch.rpm rh-ruby24-rubygem-minitest-5.10.1-86.el7.noarch.rpm rh-ruby24-rubygem-power_assert-0.4.1-86.el7.noarch.rpm rh-ruby24-rubygem-rake-12.0.0-86.el7.noarch.rpm rh-ruby24-rubygem-rdoc-5.0.0-86.el7.noarch.rpm rh-ruby24-rubygem-test-unit-3.2.3-86.el7.noarch.rpm rh-ruby24-rubygem-xmlrpc-0.2.1-86.el7.noarch.rpm rh-ruby24-rubygems-2.6.14-86.el7.noarch.rpm rh-ruby24-rubygems-devel-2.6.14-86.el7.noarch.rpm x86_64: rh-ruby24-ruby-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-debuginfo-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-devel-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-libs-2.4.2-86.el7.x86_64.rpm rh-ruby24-rubygem-bigdecimal-1.3.0-86.el7.x86_64.rpm rh-ruby24-rubygem-did_you_mean-1.1.0-86.el7.x86_64.rpm rh-ruby24-rubygem-io-console-0.4.6-86.el7.x86_64.rpm rh-ruby24-rubygem-json-2.0.4-86.el7.x86_64.rpm rh-ruby24-rubygem-net-telnet-0.1.1-86.el7.x86_64.rpm rh-ruby24-rubygem-openssl-2.0.5-86.el7.x86_64.rpm rh-ruby24-rubygem-psych-2.2.2-86.el7.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3): Source: rh-ruby24-ruby-2.4.2-86.el7.src.rpm noarch: rh-ruby24-ruby-doc-2.4.2-86.el7.noarch.rpm rh-ruby24-ruby-irb-2.4.2-86.el7.noarch.rpm rh-ruby24-rubygem-minitest-5.10.1-86.el7.noarch.rpm rh-ruby24-rubygem-power_assert-0.4.1-86.el7.noarch.rpm rh-ruby24-rubygem-rake-12.0.0-86.el7.noarch.rpm rh-ruby24-rubygem-rdoc-5.0.0-86.el7.noarch.rpm rh-ruby24-rubygem-test-unit-3.2.3-86.el7.noarch.rpm rh-ruby24-rubygem-xmlrpc-0.2.1-86.el7.noarch.rpm rh-ruby24-rubygems-2.6.14-86.el7.noarch.rpm rh-ruby24-rubygems-devel-2.6.14-86.el7.noarch.rpm x86_64: rh-ruby24-ruby-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-debuginfo-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-devel-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-libs-2.4.2-86.el7.x86_64.rpm rh-ruby24-rubygem-bigdecimal-1.3.0-86.el7.x86_64.rpm rh-ruby24-rubygem-did_you_mean-1.1.0-86.el7.x86_64.rpm rh-ruby24-rubygem-io-console-0.4.6-86.el7.x86_64.rpm rh-ruby24-rubygem-json-2.0.4-86.el7.x86_64.rpm rh-ruby24-rubygem-net-telnet-0.1.1-86.el7.x86_64.rpm rh-ruby24-rubygem-openssl-2.0.5-86.el7.x86_64.rpm rh-ruby24-rubygem-psych-2.2.2-86.el7.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4): Source: rh-ruby24-ruby-2.4.2-86.el7.src.rpm noarch: rh-ruby24-ruby-doc-2.4.2-86.el7.noarch.rpm rh-ruby24-ruby-irb-2.4.2-86.el7.noarch.rpm rh-ruby24-rubygem-minitest-5.10.1-86.el7.noarch.rpm rh-ruby24-rubygem-power_assert-0.4.1-86.el7.noarch.rpm rh-ruby24-rubygem-rake-12.0.0-86.el7.noarch.rpm rh-ruby24-rubygem-rdoc-5.0.0-86.el7.noarch.rpm rh-ruby24-rubygem-test-unit-3.2.3-86.el7.noarch.rpm rh-ruby24-rubygem-xmlrpc-0.2.1-86.el7.noarch.rpm rh-ruby24-rubygems-2.6.14-86.el7.noarch.rpm rh-ruby24-rubygems-devel-2.6.14-86.el7.noarch.rpm x86_64: rh-ruby24-ruby-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-debuginfo-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-devel-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-libs-2.4.2-86.el7.x86_64.rpm rh-ruby24-rubygem-bigdecimal-1.3.0-86.el7.x86_64.rpm rh-ruby24-rubygem-did_you_mean-1.1.0-86.el7.x86_64.rpm rh-ruby24-rubygem-io-console-0.4.6-86.el7.x86_64.rpm rh-ruby24-rubygem-json-2.0.4-86.el7.x86_64.rpm rh-ruby24-rubygem-net-telnet-0.1.1-86.el7.x86_64.rpm rh-ruby24-rubygem-openssl-2.0.5-86.el7.x86_64.rpm rh-ruby24-rubygem-psych-2.2.2-86.el7.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7): Source: rh-ruby24-ruby-2.4.2-86.el7.src.rpm noarch: rh-ruby24-ruby-doc-2.4.2-86.el7.noarch.rpm rh-ruby24-ruby-irb-2.4.2-86.el7.noarch.rpm rh-ruby24-rubygem-minitest-5.10.1-86.el7.noarch.rpm rh-ruby24-rubygem-power_assert-0.4.1-86.el7.noarch.rpm rh-ruby24-rubygem-rake-12.0.0-86.el7.noarch.rpm rh-ruby24-rubygem-rdoc-5.0.0-86.el7.noarch.rpm rh-ruby24-rubygem-test-unit-3.2.3-86.el7.noarch.rpm rh-ruby24-rubygem-xmlrpc-0.2.1-86.el7.noarch.rpm rh-ruby24-rubygems-2.6.14-86.el7.noarch.rpm rh-ruby24-rubygems-devel-2.6.14-86.el7.noarch.rpm x86_64: rh-ruby24-ruby-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-debuginfo-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-devel-2.4.2-86.el7.x86_64.rpm rh-ruby24-ruby-libs-2.4.2-86.el7.x86_64.rpm rh-ruby24-rubygem-bigdecimal-1.3.0-86.el7.x86_64.rpm rh-ruby24-rubygem-did_you_mean-1.1.0-86.el7.x86_64.rpm rh-ruby24-rubygem-io-console-0.4.6-86.el7.x86_64.rpm rh-ruby24-rubygem-json-2.0.4-86.el7.x86_64.rpm rh-ruby24-rubygem-net-telnet-0.1.1-86.el7.x86_64.rpm rh-ruby24-rubygem-openssl-2.0.5-86.el7.x86_64.rpm rh-ruby24-rubygem-psych-2.2.2-86.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-2017-0898 https://access.redhat.com/security/cve/CVE-2017-0899 https://access.redhat.com/security/cve/CVE-2017-0900 https://access.redhat.com/security/cve/CVE-2017-0901 https://access.redhat.com/security/cve/CVE-2017-0902 https://access.redhat.com/security/cve/CVE-2017-0903 https://access.redhat.com/security/cve/CVE-2017-10784 https://access.redhat.com/security/cve/CVE-2017-14064 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 2017 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFaOM+JXlSAg2UNWIIRAqaDAKC9Irw/Rln4CyNuCV/te7XFo4WhowCcCMH9 z34qLfRLYhdz170IYhPJdR0= =EBZR - -----END PGP SIGNATURE----- - --------------------------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. 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