Otkriven je i ispravljen sigurnosni propust vezan uz glibc. Spomenuti propust udaljeni napadač mogao je iskoristiti za zaobilaženje FORTIFY_SOURCE zaštita i izvođenje proizvoljnog programskog koda.
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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://rhn.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/knowledge/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:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/glibc-2.5-81.el5_8.1.src.rpm
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:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/glibc-2.5-81.el5_8.1.src.rpm
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://www.redhat.com/security/data/cve/CVE-2012-0864.html
https://access.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2012 Red Hat, Inc.
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