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Red Hat Security Advisory
Synopsis: Moderate: ruby security and bug fix update
Advisory ID: RHSA-2013:0129-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0129.html
Issue date: 2013-01-08
CVE Names: CVE-2012-4481 CVE-2012-4522
=====================================================================
1. Summary:
Updated ruby packages that fix two security issues and one bug are now
available for Red Hat Enterprise Linux 5.
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.
2. Relevant releases/architectures:
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - 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.
It was found that certain methods did not sanitize file names before
passing them to lower layer routines in Ruby. If a Ruby application created
files with names based on untrusted input, it could result in the creation
of files with different names than expected. (CVE-2012-4522)
It was found that the RHSA-2011:0909 update did not correctly fix the
CVE-2011-1005 issue, a flaw 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-2012-4481)
The CVE-2012-4481 issue was discovered by Vit Ondruch of Red Hat.
This update also fixes the following bug:
* Prior to this update, the "rb_syck_mktime" option could, under
certain
circumstances, terminate with a segmentation fault when installing
libraries with certain gems. This update modifies the underlying code so
that Ruby gems can be installed as expected. (BZ#834381)
All users of Ruby are advised to upgrade to these updated packages, which
contain backported patches to resolve these issues.
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/knowledge/articles/11258
5. Bugs fixed (http://bugzilla.redhat.com/):
863484 - CVE-2012-4481 ruby: Incomplete fix for CVE-2011-1005 for
NameError#to_s method when used on objects
865940 - CVE-2012-4522 ruby: unintentional file creation caused by inserting an
illegal NUL character
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
ruby-1.8.5-27.el5.src.rpm
i386:
ruby-1.8.5-27.el5.i386.rpm
ruby-debuginfo-1.8.5-27.el5.i386.rpm
ruby-docs-1.8.5-27.el5.i386.rpm
ruby-irb-1.8.5-27.el5.i386.rpm
ruby-libs-1.8.5-27.el5.i386.rpm
ruby-rdoc-1.8.5-27.el5.i386.rpm
ruby-ri-1.8.5-27.el5.i386.rpm
ruby-tcltk-1.8.5-27.el5.i386.rpm
x86_64:
ruby-1.8.5-27.el5.x86_64.rpm
ruby-debuginfo-1.8.5-27.el5.i386.rpm
ruby-debuginfo-1.8.5-27.el5.x86_64.rpm
ruby-docs-1.8.5-27.el5.x86_64.rpm
ruby-irb-1.8.5-27.el5.x86_64.rpm
ruby-libs-1.8.5-27.el5.i386.rpm
ruby-libs-1.8.5-27.el5.x86_64.rpm
ruby-rdoc-1.8.5-27.el5.x86_64.rpm
ruby-ri-1.8.5-27.el5.x86_64.rpm
ruby-tcltk-1.8.5-27.el5.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
ruby-1.8.5-27.el5.src.rpm
i386:
ruby-debuginfo-1.8.5-27.el5.i386.rpm
ruby-devel-1.8.5-27.el5.i386.rpm
ruby-mode-1.8.5-27.el5.i386.rpm
x86_64:
ruby-debuginfo-1.8.5-27.el5.i386.rpm
ruby-debuginfo-1.8.5-27.el5.x86_64.rpm
ruby-devel-1.8.5-27.el5.i386.rpm
ruby-devel-1.8.5-27.el5.x86_64.rpm
ruby-mode-1.8.5-27.el5.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
ruby-1.8.5-27.el5.src.rpm
i386:
ruby-1.8.5-27.el5.i386.rpm
ruby-debuginfo-1.8.5-27.el5.i386.rpm
ruby-devel-1.8.5-27.el5.i386.rpm
ruby-docs-1.8.5-27.el5.i386.rpm
ruby-irb-1.8.5-27.el5.i386.rpm
ruby-libs-1.8.5-27.el5.i386.rpm
ruby-mode-1.8.5-27.el5.i386.rpm
ruby-rdoc-1.8.5-27.el5.i386.rpm
ruby-ri-1.8.5-27.el5.i386.rpm
ruby-tcltk-1.8.5-27.el5.i386.rpm
ia64:
ruby-1.8.5-27.el5.ia64.rpm
ruby-debuginfo-1.8.5-27.el5.ia64.rpm
ruby-devel-1.8.5-27.el5.ia64.rpm
ruby-docs-1.8.5-27.el5.ia64.rpm
ruby-irb-1.8.5-27.el5.ia64.rpm
ruby-libs-1.8.5-27.el5.ia64.rpm
ruby-mode-1.8.5-27.el5.ia64.rpm
ruby-rdoc-1.8.5-27.el5.ia64.rpm
ruby-ri-1.8.5-27.el5.ia64.rpm
ruby-tcltk-1.8.5-27.el5.ia64.rpm
ppc:
ruby-1.8.5-27.el5.ppc.rpm
ruby-debuginfo-1.8.5-27.el5.ppc.rpm
ruby-debuginfo-1.8.5-27.el5.ppc64.rpm
ruby-devel-1.8.5-27.el5.ppc.rpm
ruby-devel-1.8.5-27.el5.ppc64.rpm
ruby-docs-1.8.5-27.el5.ppc.rpm
ruby-irb-1.8.5-27.el5.ppc.rpm
ruby-libs-1.8.5-27.el5.ppc.rpm
ruby-libs-1.8.5-27.el5.ppc64.rpm
ruby-mode-1.8.5-27.el5.ppc.rpm
ruby-rdoc-1.8.5-27.el5.ppc.rpm
ruby-ri-1.8.5-27.el5.ppc.rpm
ruby-tcltk-1.8.5-27.el5.ppc.rpm
s390x:
ruby-1.8.5-27.el5.s390x.rpm
ruby-debuginfo-1.8.5-27.el5.s390.rpm
ruby-debuginfo-1.8.5-27.el5.s390x.rpm
ruby-devel-1.8.5-27.el5.s390.rpm
ruby-devel-1.8.5-27.el5.s390x.rpm
ruby-docs-1.8.5-27.el5.s390x.rpm
ruby-irb-1.8.5-27.el5.s390x.rpm
ruby-libs-1.8.5-27.el5.s390.rpm
ruby-libs-1.8.5-27.el5.s390x.rpm
ruby-mode-1.8.5-27.el5.s390x.rpm
ruby-rdoc-1.8.5-27.el5.s390x.rpm
ruby-ri-1.8.5-27.el5.s390x.rpm
ruby-tcltk-1.8.5-27.el5.s390x.rpm
x86_64:
ruby-1.8.5-27.el5.x86_64.rpm
ruby-debuginfo-1.8.5-27.el5.i386.rpm
ruby-debuginfo-1.8.5-27.el5.x86_64.rpm
ruby-devel-1.8.5-27.el5.i386.rpm
ruby-devel-1.8.5-27.el5.x86_64.rpm
ruby-docs-1.8.5-27.el5.x86_64.rpm
ruby-irb-1.8.5-27.el5.x86_64.rpm
ruby-libs-1.8.5-27.el5.i386.rpm
ruby-libs-1.8.5-27.el5.x86_64.rpm
ruby-mode-1.8.5-27.el5.x86_64.rpm
ruby-rdoc-1.8.5-27.el5.x86_64.rpm
ruby-ri-1.8.5-27.el5.x86_64.rpm
ruby-tcltk-1.8.5-27.el5.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-2012-4481.html
https://www.redhat.com/security/data/cve/CVE-2012-4522.html
https://access.redhat.com/security/updates/classification/#moderate
https://rhn.redhat.com/errata/RHSA-2011-0909.html
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2013 Red Hat, Inc.
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