Synopsis: Moderate: ruby security update Issue Date: 2011-06-28 CVE Numbers: CVE-2011-1004 CVE-2011-1005 CVE-2011-0188 Ruby is an extensible, interpreted, object-oriented, scripting language. It has features to process text files and to do system management tasks. A flaw was found in the way large amounts of memory were allocated on 64-bit systems when using the BigDecimal class. A context-dependent attacker could use this flaw to cause memory corruption, causing a Ruby application that uses the BigDecimal class to crash or, possibly, execute arbitrary code. This issue did not affect 32-bit systems. (CVE-2011-0188) A race condition flaw was found in the remove system entries method in the FileUtils module. If a local user ran a Ruby script that uses this method, a local attacker could use this flaw to delete arbitrary files and directories accessible to that user via a symbolic link attack. (CVE-2011-1004) A flaw was found in the method for translating an exception message into a string in the Exception class. A remote attacker could use this flaw to bypass safe level 4 restrictions, allowing untrusted (tainted) code to modify arbitrary, trusted (untainted) strings, which safe level 4 restrictions would otherwise prevent. (CVE-2011-1005) All Ruby users should upgrade to these updated packages, which contain backported patches to resolve these issues. SL6: i386 ruby-1.8.7.299-7.el6_1.1.i686.rpm ruby-tcltk-1.8.7.299-7.el6_1.1.i686.rpm ruby-static-1.8.7.299-7.el6_1.1.i686.rpm ruby-ri-1.8.7.299-7.el6_1.1.i686.rpm ruby-rdoc-1.8.7.299-7.el6_1.1.i686.rpm ruby-libs-1.8.7.299-7.el6_1.1.i686.rpm ruby-irb-1.8.7.299-7.el6_1.1.i686.rpm ruby-docs-1.8.7.299-7.el6_1.1.i686.rpm ruby-devel-1.8.7.299-7.el6_1.1.i686.rpm x86_64 ruby-libs-1.8.7.299-7.el6_1.1.i686.rpm ruby-libs-1.8.7.299-7.el6_1.1.x86_64.rpm ruby-rdoc-1.8.7.299-7.el6_1.1.x86_64.rpm ruby-ri-1.8.7.299-7.el6_1.1.x86_64.rpm ruby-static-1.8.7.299-7.el6_1.1.x86_64.rpm ruby-irb-1.8.7.299-7.el6_1.1.x86_64.rpm ruby-docs-1.8.7.299-7.el6_1.1.x86_64.rpm ruby-devel-1.8.7.299-7.el6_1.1.x86_64.rpm ruby-devel-1.8.7.299-7.el6_1.1.i686.rpm ruby-1.8.7.299-7.el6_1.1.x86_64.rpm ruby-tcltk-1.8.7.299-7.el6_1.1.x86_64.rpm - Scientific Linux Development Team