Issued:
2011-06-28
Updated:
2011-06-28

RHSA-2011:0910 - Moderate: ruby security update

Synopsis

Moderate: ruby security update

Type/Severity

Security Advisory Moderate

Topic

Updated ruby packages that fix three security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Description

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)

Red Hat would like to thank Drew Yao of Apple Product Security for reporting the CVE-2011-0188 issue.

All Ruby users should upgrade to these updated packages, which contain backported patches to resolve these issues.

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 This content is not included.https://access.redhat.com/kb/docs/DOC-11259

Affected Products

ProductVersionArch
Red Hat Virtual Storage Appliance (from RHUI)6.1x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.1x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.1i386
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for Power, big endian - Extended Update Support6.1ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support6.1s390x
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server from RHUI6i386
Red Hat Enterprise Linux Server - Retired Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.1x86_64
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.1i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)6s390x
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • ruby-libs-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-debuginfo-1.8.7.299-7.el6_1.1.x86_64.rpm
  • ruby-ri-1.8.7.299-7.el6_1.1.i686.rpm
  • ruby-ri-1.8.7.299-7.el6_1.1.s390x.rpm
  • ruby-rdoc-1.8.7.299-7.el6_1.1.ppc64.rpm
  • ruby-docs-1.8.7.299-7.el6_1.1.s390x.rpm
  • ruby-static-1.8.7.299-7.el6_1.1.s390x.rpm
  • ruby-devel-1.8.7.299-7.el6_1.1.i686.rpm
  • ruby-devel-1.8.7.299-7.el6_1.1.ppc.rpm
  • ruby-tcltk-1.8.7.299-7.el6_1.1.ppc64.rpm
  • ruby-docs-1.8.7.299-7.el6_1.1.i686.rpm
  • ruby-static-1.8.7.299-7.el6_1.1.ppc64.rpm
  • ruby-debuginfo-1.8.7.299-7.el6_1.1.ppc.rpm
  • ruby-rdoc-1.8.7.299-7.el6_1.1.i686.rpm
  • ruby-docs-1.8.7.299-7.el6_1.1.ppc64.rpm
  • ruby-1.8.7.299-7.el6_1.1.i686.rpm
  • ruby-irb-1.8.7.299-7.el6_1.1.x86_64.rpm
  • ruby-irb-1.8.7.299-7.el6_1.1.s390x.rpm
  • ruby-irb-1.8.7.299-7.el6_1.1.ppc64.rpm
  • ruby-docs-1.8.7.299-7.el6_1.1.x86_64.rpm
  • ruby-debuginfo-1.8.7.299-7.el6_1.1.s390.rpm
  • ruby-rdoc-1.8.7.299-7.el6_1.1.s390x.rpm
  • ruby-ri-1.8.7.299-7.el6_1.1.ppc64.rpm
  • ruby-libs-1.8.7.299-7.el6_1.1.s390x.rpm
  • ruby-1.8.7.299-7.el6_1.1.s390x.rpm
  • ruby-rdoc-1.8.7.299-7.el6_1.1.x86_64.rpm
  • ruby-tcltk-1.8.7.299-7.el6_1.1.i686.rpm
  • ruby-tcltk-1.8.7.299-7.el6_1.1.x86_64.rpm
  • ruby-1.8.7.299-7.el6_1.1.ppc64.rpm
  • ruby-devel-1.8.7.299-7.el6_1.1.s390.rpm
  • ruby-debuginfo-1.8.7.299-7.el6_1.1.i686.rpm
  • ruby-static-1.8.7.299-7.el6_1.1.i686.rpm
  • ruby-devel-1.8.7.299-7.el6_1.1.x86_64.rpm
  • ruby-1.8.7.299-7.el6_1.1.x86_64.rpm
  • ruby-debuginfo-1.8.7.299-7.el6_1.1.s390x.rpm
  • ruby-irb-1.8.7.299-7.el6_1.1.i686.rpm
  • ruby-libs-1.8.7.299-7.el6_1.1.ppc.rpm
  • ruby-libs-1.8.7.299-7.el6_1.1.i686.rpm
  • ruby-static-1.8.7.299-7.el6_1.1.x86_64.rpm
  • ruby-debuginfo-1.8.7.299-7.el6_1.1.ppc64.rpm
  • ruby-devel-1.8.7.299-7.el6_1.1.ppc64.rpm
  • ruby-devel-1.8.7.299-7.el6_1.1.s390x.rpm
  • ruby-libs-1.8.7.299-7.el6_1.1.s390.rpm
  • ruby-libs-1.8.7.299-7.el6_1.1.ppc64.rpm
  • ruby-tcltk-1.8.7.299-7.el6_1.1.s390x.rpm
  • ruby-1.8.7.299-7.el6_1.1.src.rpm

Fixes

CVEs

References

Additional information