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Red Hat Security Advisory 2012-1208-01

Red Hat Security Advisory 2012-1208-01
Posted Aug 28, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1208-01 - The glibc packages provide the standard C and standard math libraries used by multiple programs on the system. Without these libraries, the Linux system cannot function properly. Multiple integer overflow flaws, leading to stack-based buffer overflows, were found in glibc's functions for converting a string to a numeric representation, strtof(), and strtold()). If an application used such a function on attacker controlled input, it could cause the application to crash or, potentially, execute arbitrary code.

tags | advisory, overflow, arbitrary
systems | linux, redhat
advisories | CVE-2012-3480
SHA-256 | 38c44f4e936f0865b778142043b48db215db036dcbf8504a5069e55ff3a39a6f

Red Hat Security Advisory 2012-1208-01

Change Mirror Download
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Hash: SHA1

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

Synopsis: Moderate: glibc security update
Advisory ID: RHSA-2012:1208-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1208.html
Issue date: 2012-08-27
CVE Names: CVE-2012-3480
=====================================================================

1. Summary:

Updated glibc packages that fix multiple 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. 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:

The glibc packages provide the standard C and standard math libraries used
by multiple programs on the system. Without these libraries, the Linux
system cannot function properly.

Multiple integer overflow flaws, leading to stack-based buffer overflows,
were found in glibc's functions for converting a string to a numeric
representation (strtod(), strtof(), and strtold()). If an application used
such a function on attacker controlled input, it could cause the
application to crash or, potentially, execute arbitrary code.
(CVE-2012-3480)

All users of glibc are advised to upgrade to these updated packages, which
contain a backported patch to correct 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/):

847715 - CVE-2012-3480 glibc: Integer overflows, leading to stack-based buffer overflows in strto* related routines

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/glibc-2.12-1.80.el6_3.5.src.rpm

i386:
glibc-2.12-1.80.el6_3.5.i686.rpm
glibc-common-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-devel-2.12-1.80.el6_3.5.i686.rpm
glibc-headers-2.12-1.80.el6_3.5.i686.rpm
glibc-utils-2.12-1.80.el6_3.5.i686.rpm
nscd-2.12-1.80.el6_3.5.i686.rpm

x86_64:
glibc-2.12-1.80.el6_3.5.i686.rpm
glibc-2.12-1.80.el6_3.5.x86_64.rpm
glibc-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-devel-2.12-1.80.el6_3.5.i686.rpm
glibc-devel-2.12-1.80.el6_3.5.x86_64.rpm
glibc-headers-2.12-1.80.el6_3.5.x86_64.rpm
glibc-utils-2.12-1.80.el6_3.5.x86_64.rpm
nscd-2.12-1.80.el6_3.5.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/glibc-2.12-1.80.el6_3.5.src.rpm

i386:
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-static-2.12-1.80.el6_3.5.i686.rpm

x86_64:
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-static-2.12-1.80.el6_3.5.i686.rpm
glibc-static-2.12-1.80.el6_3.5.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/glibc-2.12-1.80.el6_3.5.src.rpm

x86_64:
glibc-2.12-1.80.el6_3.5.i686.rpm
glibc-2.12-1.80.el6_3.5.x86_64.rpm
glibc-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-devel-2.12-1.80.el6_3.5.i686.rpm
glibc-devel-2.12-1.80.el6_3.5.x86_64.rpm
glibc-headers-2.12-1.80.el6_3.5.x86_64.rpm
glibc-utils-2.12-1.80.el6_3.5.x86_64.rpm
nscd-2.12-1.80.el6_3.5.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/glibc-2.12-1.80.el6_3.5.src.rpm

x86_64:
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-static-2.12-1.80.el6_3.5.i686.rpm
glibc-static-2.12-1.80.el6_3.5.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/glibc-2.12-1.80.el6_3.5.src.rpm

i386:
glibc-2.12-1.80.el6_3.5.i686.rpm
glibc-common-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-devel-2.12-1.80.el6_3.5.i686.rpm
glibc-headers-2.12-1.80.el6_3.5.i686.rpm
glibc-utils-2.12-1.80.el6_3.5.i686.rpm
nscd-2.12-1.80.el6_3.5.i686.rpm

ppc64:
glibc-2.12-1.80.el6_3.5.ppc.rpm
glibc-2.12-1.80.el6_3.5.ppc64.rpm
glibc-common-2.12-1.80.el6_3.5.ppc64.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.ppc.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.ppc64.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.ppc.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.ppc64.rpm
glibc-devel-2.12-1.80.el6_3.5.ppc.rpm
glibc-devel-2.12-1.80.el6_3.5.ppc64.rpm
glibc-headers-2.12-1.80.el6_3.5.ppc64.rpm
glibc-utils-2.12-1.80.el6_3.5.ppc64.rpm
nscd-2.12-1.80.el6_3.5.ppc64.rpm

s390x:
glibc-2.12-1.80.el6_3.5.s390.rpm
glibc-2.12-1.80.el6_3.5.s390x.rpm
glibc-common-2.12-1.80.el6_3.5.s390x.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.s390.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.s390x.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.s390.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.s390x.rpm
glibc-devel-2.12-1.80.el6_3.5.s390.rpm
glibc-devel-2.12-1.80.el6_3.5.s390x.rpm
glibc-headers-2.12-1.80.el6_3.5.s390x.rpm
glibc-utils-2.12-1.80.el6_3.5.s390x.rpm
nscd-2.12-1.80.el6_3.5.s390x.rpm

x86_64:
glibc-2.12-1.80.el6_3.5.i686.rpm
glibc-2.12-1.80.el6_3.5.x86_64.rpm
glibc-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-devel-2.12-1.80.el6_3.5.i686.rpm
glibc-devel-2.12-1.80.el6_3.5.x86_64.rpm
glibc-headers-2.12-1.80.el6_3.5.x86_64.rpm
glibc-utils-2.12-1.80.el6_3.5.x86_64.rpm
nscd-2.12-1.80.el6_3.5.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/glibc-2.12-1.80.el6_3.5.src.rpm

i386:
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-static-2.12-1.80.el6_3.5.i686.rpm

ppc64:
glibc-debuginfo-2.12-1.80.el6_3.5.ppc.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.ppc64.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.ppc.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.ppc64.rpm
glibc-static-2.12-1.80.el6_3.5.ppc.rpm
glibc-static-2.12-1.80.el6_3.5.ppc64.rpm

s390x:
glibc-debuginfo-2.12-1.80.el6_3.5.s390.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.s390x.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.s390.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.s390x.rpm
glibc-static-2.12-1.80.el6_3.5.s390.rpm
glibc-static-2.12-1.80.el6_3.5.s390x.rpm

x86_64:
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-static-2.12-1.80.el6_3.5.i686.rpm
glibc-static-2.12-1.80.el6_3.5.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/glibc-2.12-1.80.el6_3.5.src.rpm

i386:
glibc-2.12-1.80.el6_3.5.i686.rpm
glibc-common-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-devel-2.12-1.80.el6_3.5.i686.rpm
glibc-headers-2.12-1.80.el6_3.5.i686.rpm
glibc-utils-2.12-1.80.el6_3.5.i686.rpm
nscd-2.12-1.80.el6_3.5.i686.rpm

x86_64:
glibc-2.12-1.80.el6_3.5.i686.rpm
glibc-2.12-1.80.el6_3.5.x86_64.rpm
glibc-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-devel-2.12-1.80.el6_3.5.i686.rpm
glibc-devel-2.12-1.80.el6_3.5.x86_64.rpm
glibc-headers-2.12-1.80.el6_3.5.x86_64.rpm
glibc-utils-2.12-1.80.el6_3.5.x86_64.rpm
nscd-2.12-1.80.el6_3.5.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/glibc-2.12-1.80.el6_3.5.src.rpm

i386:
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-static-2.12-1.80.el6_3.5.i686.rpm

x86_64:
glibc-debuginfo-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-2.12-1.80.el6_3.5.x86_64.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.i686.rpm
glibc-debuginfo-common-2.12-1.80.el6_3.5.x86_64.rpm
glibc-static-2.12-1.80.el6_3.5.i686.rpm
glibc-static-2.12-1.80.el6_3.5.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-2012-3480.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2012 Red Hat, Inc.
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