-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: ruby security update Advisory ID: RHSA-2012:0069-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0069.html Issue date: 2012-01-30 CVE Names: CVE-2011-4815 ===================================================================== 1. Summary: Updated ruby packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64 3. Description: Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to do system management tasks. A denial of service flaw was found in the implementation of associative arrays (hashes) in Ruby. An attacker able to supply a large number of inputs to a Ruby application (such as HTTP POST request parameters sent to a web application) that are used as keys when inserting data into an array could trigger multiple hash function collisions, making array operations take an excessive amount of CPU time. To mitigate this issue, randomization has been added to the hash function to reduce the chance of an attacker successfully causing intentional collisions. (CVE-2011-4815) Red Hat would like to thank oCERT for reporting this issue. oCERT acknowledges Julian Wälde and Alexander Klink as the original reporters. All users of ruby are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 750564 - CVE-2011-4815 ruby: hash table collisions CPU usage DoS (oCERT-2011-003) 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/ruby-1.8.7.352-4.el6_2.src.rpm i386: ruby-1.8.7.352-4.el6_2.i686.rpm ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-irb-1.8.7.352-4.el6_2.i686.rpm ruby-libs-1.8.7.352-4.el6_2.i686.rpm x86_64: ruby-1.8.7.352-4.el6_2.x86_64.rpm ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-debuginfo-1.8.7.352-4.el6_2.x86_64.rpm ruby-irb-1.8.7.352-4.el6_2.x86_64.rpm ruby-libs-1.8.7.352-4.el6_2.i686.rpm ruby-libs-1.8.7.352-4.el6_2.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/ruby-1.8.7.352-4.el6_2.src.rpm i386: ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-devel-1.8.7.352-4.el6_2.i686.rpm ruby-docs-1.8.7.352-4.el6_2.i686.rpm ruby-rdoc-1.8.7.352-4.el6_2.i686.rpm ruby-ri-1.8.7.352-4.el6_2.i686.rpm ruby-static-1.8.7.352-4.el6_2.i686.rpm ruby-tcltk-1.8.7.352-4.el6_2.i686.rpm x86_64: ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-debuginfo-1.8.7.352-4.el6_2.x86_64.rpm ruby-devel-1.8.7.352-4.el6_2.i686.rpm ruby-devel-1.8.7.352-4.el6_2.x86_64.rpm ruby-docs-1.8.7.352-4.el6_2.x86_64.rpm ruby-rdoc-1.8.7.352-4.el6_2.x86_64.rpm ruby-ri-1.8.7.352-4.el6_2.x86_64.rpm ruby-static-1.8.7.352-4.el6_2.x86_64.rpm ruby-tcltk-1.8.7.352-4.el6_2.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/ruby-1.8.7.352-4.el6_2.src.rpm x86_64: ruby-1.8.7.352-4.el6_2.x86_64.rpm ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-debuginfo-1.8.7.352-4.el6_2.x86_64.rpm ruby-irb-1.8.7.352-4.el6_2.x86_64.rpm ruby-libs-1.8.7.352-4.el6_2.i686.rpm ruby-libs-1.8.7.352-4.el6_2.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/ruby-1.8.7.352-4.el6_2.src.rpm x86_64: ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-debuginfo-1.8.7.352-4.el6_2.x86_64.rpm ruby-devel-1.8.7.352-4.el6_2.i686.rpm ruby-devel-1.8.7.352-4.el6_2.x86_64.rpm ruby-docs-1.8.7.352-4.el6_2.x86_64.rpm ruby-rdoc-1.8.7.352-4.el6_2.x86_64.rpm ruby-ri-1.8.7.352-4.el6_2.x86_64.rpm ruby-static-1.8.7.352-4.el6_2.x86_64.rpm ruby-tcltk-1.8.7.352-4.el6_2.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/ruby-1.8.7.352-4.el6_2.src.rpm i386: ruby-1.8.7.352-4.el6_2.i686.rpm ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-irb-1.8.7.352-4.el6_2.i686.rpm ruby-libs-1.8.7.352-4.el6_2.i686.rpm ppc64: ruby-1.8.7.352-4.el6_2.ppc64.rpm ruby-debuginfo-1.8.7.352-4.el6_2.ppc.rpm ruby-debuginfo-1.8.7.352-4.el6_2.ppc64.rpm ruby-irb-1.8.7.352-4.el6_2.ppc64.rpm ruby-libs-1.8.7.352-4.el6_2.ppc.rpm ruby-libs-1.8.7.352-4.el6_2.ppc64.rpm s390x: ruby-1.8.7.352-4.el6_2.s390x.rpm ruby-debuginfo-1.8.7.352-4.el6_2.s390.rpm ruby-debuginfo-1.8.7.352-4.el6_2.s390x.rpm ruby-irb-1.8.7.352-4.el6_2.s390x.rpm ruby-libs-1.8.7.352-4.el6_2.s390.rpm ruby-libs-1.8.7.352-4.el6_2.s390x.rpm x86_64: ruby-1.8.7.352-4.el6_2.x86_64.rpm ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-debuginfo-1.8.7.352-4.el6_2.x86_64.rpm ruby-irb-1.8.7.352-4.el6_2.x86_64.rpm ruby-libs-1.8.7.352-4.el6_2.i686.rpm ruby-libs-1.8.7.352-4.el6_2.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/ruby-1.8.7.352-4.el6_2.src.rpm i386: ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-devel-1.8.7.352-4.el6_2.i686.rpm ruby-docs-1.8.7.352-4.el6_2.i686.rpm ruby-rdoc-1.8.7.352-4.el6_2.i686.rpm ruby-ri-1.8.7.352-4.el6_2.i686.rpm ruby-static-1.8.7.352-4.el6_2.i686.rpm ruby-tcltk-1.8.7.352-4.el6_2.i686.rpm ppc64: ruby-debuginfo-1.8.7.352-4.el6_2.ppc.rpm ruby-debuginfo-1.8.7.352-4.el6_2.ppc64.rpm ruby-devel-1.8.7.352-4.el6_2.ppc.rpm ruby-devel-1.8.7.352-4.el6_2.ppc64.rpm ruby-docs-1.8.7.352-4.el6_2.ppc64.rpm ruby-rdoc-1.8.7.352-4.el6_2.ppc64.rpm ruby-ri-1.8.7.352-4.el6_2.ppc64.rpm ruby-static-1.8.7.352-4.el6_2.ppc64.rpm ruby-tcltk-1.8.7.352-4.el6_2.ppc64.rpm s390x: ruby-debuginfo-1.8.7.352-4.el6_2.s390.rpm ruby-debuginfo-1.8.7.352-4.el6_2.s390x.rpm ruby-devel-1.8.7.352-4.el6_2.s390.rpm ruby-devel-1.8.7.352-4.el6_2.s390x.rpm ruby-docs-1.8.7.352-4.el6_2.s390x.rpm ruby-rdoc-1.8.7.352-4.el6_2.s390x.rpm ruby-ri-1.8.7.352-4.el6_2.s390x.rpm ruby-static-1.8.7.352-4.el6_2.s390x.rpm ruby-tcltk-1.8.7.352-4.el6_2.s390x.rpm x86_64: ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-debuginfo-1.8.7.352-4.el6_2.x86_64.rpm ruby-devel-1.8.7.352-4.el6_2.i686.rpm ruby-devel-1.8.7.352-4.el6_2.x86_64.rpm ruby-docs-1.8.7.352-4.el6_2.x86_64.rpm ruby-rdoc-1.8.7.352-4.el6_2.x86_64.rpm ruby-ri-1.8.7.352-4.el6_2.x86_64.rpm ruby-static-1.8.7.352-4.el6_2.x86_64.rpm ruby-tcltk-1.8.7.352-4.el6_2.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/ruby-1.8.7.352-4.el6_2.src.rpm i386: ruby-1.8.7.352-4.el6_2.i686.rpm ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-irb-1.8.7.352-4.el6_2.i686.rpm ruby-libs-1.8.7.352-4.el6_2.i686.rpm x86_64: ruby-1.8.7.352-4.el6_2.x86_64.rpm ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-debuginfo-1.8.7.352-4.el6_2.x86_64.rpm ruby-irb-1.8.7.352-4.el6_2.x86_64.rpm ruby-libs-1.8.7.352-4.el6_2.i686.rpm ruby-libs-1.8.7.352-4.el6_2.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/ruby-1.8.7.352-4.el6_2.src.rpm i386: ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-devel-1.8.7.352-4.el6_2.i686.rpm ruby-docs-1.8.7.352-4.el6_2.i686.rpm ruby-rdoc-1.8.7.352-4.el6_2.i686.rpm ruby-ri-1.8.7.352-4.el6_2.i686.rpm ruby-static-1.8.7.352-4.el6_2.i686.rpm ruby-tcltk-1.8.7.352-4.el6_2.i686.rpm x86_64: ruby-debuginfo-1.8.7.352-4.el6_2.i686.rpm ruby-debuginfo-1.8.7.352-4.el6_2.x86_64.rpm ruby-devel-1.8.7.352-4.el6_2.i686.rpm ruby-devel-1.8.7.352-4.el6_2.x86_64.rpm ruby-docs-1.8.7.352-4.el6_2.x86_64.rpm ruby-rdoc-1.8.7.352-4.el6_2.x86_64.rpm ruby-ri-1.8.7.352-4.el6_2.x86_64.rpm ruby-static-1.8.7.352-4.el6_2.x86_64.rpm ruby-tcltk-1.8.7.352-4.el6_2.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/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2011-4815.html https://access.redhat.com/security/updates/classification/#moderate http://www.ocert.org/advisories/ocert-2011-003.html 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFPJuN1XlSAg2UNWIIRAk4gAKC5G9QS26DETTvyPZiIg+7upnHyQQCfXhFW 7gRSSruvMGRhJgNh5V2hobY= =ng5x -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce