====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: gc security update
Advisory ID:       RHSA-2013:1500-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2013:1500.html
Issue date:        2013-11-04
CVE Names:         CVE-2012-2673 
====================================================================
1. Summary:

Updated gc 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 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:

gc is a Boehm-Demers-Weiser conservative garbage collector for C and C++.

It was discovered that gc's implementation of the malloc() and calloc()
routines did not properly perform parameter sanitization when allocating
memory. If an application using gc did not implement application-level
validity checks for the malloc() and calloc() routines, a remote attacker
could provide specially crafted application-specific input, which, when
processed by the application, could lead to an application crash or,
potentially, arbitrary code execution with the privileges of the user
running the application. (CVE-2012-2673)

Users of gc are advised to upgrade to these updated packages, which contain
backported patches to correct this issue. Applications using gc must be
restarted for the update to take effect.

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/site/articles/11258

5. Bugs fixed (http://bugzilla.redhat.com/):

828878 - CVE-2012-2673 gc: malloc() and calloc() overflows

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:

i386:
gc-7.1-12.el6_4.i686.rpm
gc-debuginfo-7.1-12.el6_4.i686.rpm

x86_64:
gc-7.1-12.el6_4.x86_64.rpm
gc-debuginfo-7.1-12.el6_4.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:

i386:
gc-debuginfo-7.1-12.el6_4.i686.rpm
gc-devel-7.1-12.el6_4.i686.rpm

x86_64:
gc-7.1-12.el6_4.i686.rpm
gc-debuginfo-7.1-12.el6_4.i686.rpm
gc-debuginfo-7.1-12.el6_4.x86_64.rpm
gc-devel-7.1-12.el6_4.i686.rpm
gc-devel-7.1-12.el6_4.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:

x86_64:
gc-7.1-12.el6_4.i686.rpm
gc-7.1-12.el6_4.x86_64.rpm
gc-debuginfo-7.1-12.el6_4.i686.rpm
gc-debuginfo-7.1-12.el6_4.x86_64.rpm
gc-devel-7.1-12.el6_4.i686.rpm
gc-devel-7.1-12.el6_4.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:

i386:
gc-7.1-12.el6_4.i686.rpm
gc-debuginfo-7.1-12.el6_4.i686.rpm

ppc64:
gc-7.1-12.el6_4.ppc64.rpm
gc-debuginfo-7.1-12.el6_4.ppc64.rpm

s390x:
gc-7.1-12.el6_4.s390x.rpm
gc-debuginfo-7.1-12.el6_4.s390x.rpm

x86_64:
gc-7.1-12.el6_4.x86_64.rpm
gc-debuginfo-7.1-12.el6_4.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:

i386:
gc-debuginfo-7.1-12.el6_4.i686.rpm
gc-devel-7.1-12.el6_4.i686.rpm

ppc64:
gc-7.1-12.el6_4.ppc.rpm
gc-debuginfo-7.1-12.el6_4.ppc.rpm
gc-debuginfo-7.1-12.el6_4.ppc64.rpm
gc-devel-7.1-12.el6_4.ppc.rpm
gc-devel-7.1-12.el6_4.ppc64.rpm

s390x:
gc-7.1-12.el6_4.s390.rpm
gc-debuginfo-7.1-12.el6_4.s390.rpm
gc-debuginfo-7.1-12.el6_4.s390x.rpm
gc-devel-7.1-12.el6_4.s390.rpm
gc-devel-7.1-12.el6_4.s390x.rpm

x86_64:
gc-7.1-12.el6_4.i686.rpm
gc-debuginfo-7.1-12.el6_4.i686.rpm
gc-debuginfo-7.1-12.el6_4.x86_64.rpm
gc-devel-7.1-12.el6_4.i686.rpm
gc-devel-7.1-12.el6_4.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:

i386:
gc-7.1-12.el6_4.i686.rpm
gc-debuginfo-7.1-12.el6_4.i686.rpm

x86_64:
gc-7.1-12.el6_4.x86_64.rpm
gc-debuginfo-7.1-12.el6_4.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:

i386:
gc-debuginfo-7.1-12.el6_4.i686.rpm
gc-devel-7.1-12.el6_4.i686.rpm

x86_64:
gc-7.1-12.el6_4.i686.rpm
gc-debuginfo-7.1-12.el6_4.i686.rpm
gc-debuginfo-7.1-12.el6_4.x86_64.rpm
gc-devel-7.1-12.el6_4.i686.rpm
gc-devel-7.1-12.el6_4.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-2012-2673.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is .  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2013 Red Hat, Inc.