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Red Hat 5 RHSA-2012:0397-01 Moderate: glibc Format String Flaw

Redhat Large Esm H500
Updated glibc packages that fix one security issue are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score,
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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: glibc security update
Advisory ID:       RHSA-2012:0397-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2012:0397.html
Issue date:        2012-03-19
CVE Names:         CVE-2012-0864 
====================================================================
1. Summary:

Updated glibc packages that fix one security issue are now available for
Red Hat Enterprise Linux 5.

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 (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - 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 correctly.

An integer overflow flaw was found in the implementation of the printf
functions family. This could allow an attacker to bypass FORTIFY_SOURCE
protections and execute arbitrary code using a format string flaw in an
application, even though these protections are expected to limit the impact
of such flaws to an application abort. (CVE-2012-0864)

All users of glibc are advised to upgrade to these updated packages, which
contain a patch to resolve this issue.

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/articles/11258

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

794766 - CVE-2012-0864 glibc: FORTIFY_SOURCE format string protection bypass via "nargs" integer overflow

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:

i386:
glibc-2.5-81.el5_8.1.i386.rpm
glibc-2.5-81.el5_8.1.i686.rpm
glibc-common-2.5-81.el5_8.1.i386.rpm
glibc-debuginfo-2.5-81.el5_8.1.i386.rpm
glibc-debuginfo-2.5-81.el5_8.1.i686.rpm
glibc-debuginfo-common-2.5-81.el5_8.1.i386.rpm
glibc-devel-2.5-81.el5_8.1.i386.rpm
glibc-headers-2.5-81.el5_8.1.i386.rpm
glibc-utils-2.5-81.el5_8.1.i386.rpm
nscd-2.5-81.el5_8.1.i386.rpm

x86_64:
glibc-2.5-81.el5_8.1.i686.rpm
glibc-2.5-81.el5_8.1.x86_64.rpm
glibc-common-2.5-81.el5_8.1.x86_64.rpm
glibc-debuginfo-2.5-81.el5_8.1.i386.rpm
glibc-debuginfo-2.5-81.el5_8.1.i686.rpm
glibc-debuginfo-2.5-81.el5_8.1.x86_64.rpm
glibc-debuginfo-common-2.5-81.el5_8.1.i386.rpm
glibc-devel-2.5-81.el5_8.1.i386.rpm
glibc-devel-2.5-81.el5_8.1.x86_64.rpm
glibc-headers-2.5-81.el5_8.1.x86_64.rpm
glibc-utils-2.5-81.el5_8.1.x86_64.rpm
nscd-2.5-81.el5_8.1.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:

i386:
glibc-2.5-81.el5_8.1.i386.rpm
glibc-2.5-81.el5_8.1.i686.rpm
glibc-common-2.5-81.el5_8.1.i386.rpm
glibc-debuginfo-2.5-81.el5_8.1.i386.rpm
glibc-debuginfo-2.5-81.el5_8.1.i686.rpm
glibc-debuginfo-common-2.5-81.el5_8.1.i386.rpm
glibc-devel-2.5-81.el5_8.1.i386.rpm
glibc-headers-2.5-81.el5_8.1.i386.rpm
glibc-utils-2.5-81.el5_8.1.i386.rpm
nscd-2.5-81.el5_8.1.i386.rpm

ia64:
glibc-2.5-81.el5_8.1.i686.rpm
glibc-2.5-81.el5_8.1.ia64.rpm
glibc-common-2.5-81.el5_8.1.ia64.rpm
glibc-debuginfo-2.5-81.el5_8.1.i686.rpm
glibc-debuginfo-2.5-81.el5_8.1.ia64.rpm
glibc-devel-2.5-81.el5_8.1.ia64.rpm
glibc-headers-2.5-81.el5_8.1.ia64.rpm
glibc-utils-2.5-81.el5_8.1.ia64.rpm
nscd-2.5-81.el5_8.1.ia64.rpm

ppc:
glibc-2.5-81.el5_8.1.ppc.rpm
glibc-2.5-81.el5_8.1.ppc64.rpm
glibc-common-2.5-81.el5_8.1.ppc.rpm
glibc-debuginfo-2.5-81.el5_8.1.ppc.rpm
glibc-debuginfo-2.5-81.el5_8.1.ppc64.rpm
glibc-devel-2.5-81.el5_8.1.ppc.rpm
glibc-devel-2.5-81.el5_8.1.ppc64.rpm
glibc-headers-2.5-81.el5_8.1.ppc.rpm
glibc-utils-2.5-81.el5_8.1.ppc.rpm
nscd-2.5-81.el5_8.1.ppc.rpm

s390x:
glibc-2.5-81.el5_8.1.s390.rpm
glibc-2.5-81.el5_8.1.s390x.rpm
glibc-common-2.5-81.el5_8.1.s390x.rpm
glibc-debuginfo-2.5-81.el5_8.1.s390.rpm
glibc-debuginfo-2.5-81.el5_8.1.s390x.rpm
glibc-devel-2.5-81.el5_8.1.s390.rpm
glibc-devel-2.5-81.el5_8.1.s390x.rpm
glibc-headers-2.5-81.el5_8.1.s390x.rpm
glibc-utils-2.5-81.el5_8.1.s390x.rpm
nscd-2.5-81.el5_8.1.s390x.rpm

x86_64:
glibc-2.5-81.el5_8.1.i686.rpm
glibc-2.5-81.el5_8.1.x86_64.rpm
glibc-common-2.5-81.el5_8.1.x86_64.rpm
glibc-debuginfo-2.5-81.el5_8.1.i386.rpm
glibc-debuginfo-2.5-81.el5_8.1.i686.rpm
glibc-debuginfo-2.5-81.el5_8.1.x86_64.rpm
glibc-debuginfo-common-2.5-81.el5_8.1.i386.rpm
glibc-devel-2.5-81.el5_8.1.i386.rpm
glibc-devel-2.5-81.el5_8.1.x86_64.rpm
glibc-headers-2.5-81.el5_8.1.x86_64.rpm
glibc-utils-2.5-81.el5_8.1.x86_64.rpm
nscd-2.5-81.el5_8.1.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://access.redhat.com/security/cve/CVE-2012-0864
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 2012 Red Hat, Inc.
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Red Hat 5 RHSA-2012:0397-01 Moderate: glibc Format String Flaw

red hat
Calendar Grey March 19, 2012
Dist Redhat Esm H88
The latest patch for Red Hat Enterprise Linux 5 addresses a vulnerability in glibc related to format string handling. Discover the implications of this moderate severity issue.
Updated glibc packages that fix one security issue are now available for Red Hat Enterprise Linux 5

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/articles/11258

Summary

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 correctly.
An integer overflow flaw was found in the implementation of the printf functions family. This could allow an attacker to bypass FORTIFY_SOURCE protections and execute arbitrary code using a format string flaw in an application, even though these protections are expected to limit the impact of such flaws to an application abort. (CVE-2012-0864)
All users of glibc are advised to upgrade to these updated packages, which contain a patch to resolve this issue.

References

https://access.redhat.com/security/cve/CVE-2012-0864 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: glibc-2.5-81.el5_8.1.i386.rpm glibc-2.5-81.el5_8.1.i686.rpm glibc-common-2.5-81.el5_8.1.i386.rpm glibc-debuginfo-2.5-81.el5_8.1.i386.rpm glibc-debuginfo-2.5-81.el5_8.1.i686.rpm glibc-debuginfo-common-2.5-81.el5_8.1.i386.rpm glibc-devel-2.5-81.el5_8.1.i386.rpm glibc-headers-2.5-81.el5_8.1.i386.rpm glibc-utils-2.5-81.el5_8.1.i386.rpm nscd-2.5-81.el5_8.1.i386.rpm
x86_64: glibc-2.5-81.el5_8.1.i686.rpm glibc-2.5-81.el5_8.1.x86_64.rpm glibc-common-2.5-81.el5_8.1.x86_64.rpm glibc-debuginfo-2.5-81.el5_8.1.i386.rpm glibc-debuginfo-2.5-81.el5_8.1.i686.rpm glibc-debuginfo-2.5-81.el5_8.1.x86_64.rpm glibc-debuginfo-common-2.5-81.el5_8.1.i386.rpm glibc-devel-2.5-81.el5_8.1.i386.rpm glibc-devel-2.5-81.el5_8.1.x86_64.rpm glibc-headers-2.5-81.el5_8.1.x86_64.rpm glibc-utils-2.5-81.el5_8.1.x86_64.rpm nscd-2.5-81.el5_8.1.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: glibc-2.5-81.el5_8.1.i386.rpm glibc-2.5-81.el5_8.1.i686.rpm glibc-common-2.5-81.el5_8.1.i386.rpm glibc-debuginfo-2.5-81.el5_8.1.i386.rpm glibc-debuginfo-2.5-81.el5_8.1.i686.rpm glibc-debuginfo-common-2.5-81.el5_8.1.i386.rpm glibc-devel-2.5-81.el5_8.1.i386.rpm glibc-headers-2.5-81.el5_8.1.i386.rpm glibc-utils-2.5-81.el5_8.1.i386.rpm

Read the Full Advisory


Advisory ID: RHSA-2012:0397-01
Product: Red Hat Enterprise Linux
Issue date: 2012-03-19

Topic

Updated glibc packages that fix one security issue are now available forRed Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Relevant Releases Architectures

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Bugs Fixed

794766 - CVE-2012-0864 glibc: FORTIFY_SOURCE format string protection bypass via "nargs" integer overflow

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