Moderate CentOS glibc Update

Metadata

medium
6.8
glibc-2.5-81.el5_8.4.i386.rpm, glibc-2.5-81.el5_8.4.i686.rpm, glibc-2.5-81.el5_8.4.src.rpm, glibc-2.5-81.el5_8.4.x86_64.rpm, glibc-common-2.5-81.el5_8.4.i386.rpm, glibc-common-2.5-81.el5_8.4.x86_64.rpm, glibc-devel-2.5-81.el5_8.4.i386.rpm, glibc-devel-2.5-81.el5_8.4.x86_64.rpm, glibc-headers-2.5-81.el5_8.4.i386.rpm, glibc-headers-2.5-81.el5_8.4.x86_64.rpm, glibc-utils-2.5-81.el5_8.4.i386.rpm, glibc-utils-2.5-81.el5_8.4.x86_64.rpm, nscd-2.5-81.el5_8.4.i386.rpm, nscd-2.5-81.el5_8.4.x86_64.rpm
CVE-2012-3406
rhn.redhat.com, lists.centos.org
2012-07-18
2017-07-27 19:03
ALAS-2012-109
CVE-2012-3406 glibc
CVE-2012-3406 eglibc
CVE-2012-3406
2017-04-01 19:06
2017-01-05 20:10

Description


Updated glibc packages that fix one security issue 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. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

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.

It was discovered that the formatted printing functionality in glibc did
not properly restrict the use of alloca(). 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-2012-3406)

This update also fixes the following bug:

* If a file or a string was in the IBM-930 encoding, and contained the
invalid multibyte character "0xffff", attempting to use iconv() (or the
iconv command) to convert that file or string to another encoding, such as
UTF-8, resulted in a segmentation fault. With this update, the conversion
code for the IBM-930 encoding recognizes this invalid character and calls
an error handler, rather than causing a segmentation fault. (BZ#837896)

All users of glibc are advised to upgrade to these updated packages, which
contain backported patches to fix these issues.
Please see https://www.redhat.com/footer/terms-of-use.html

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Affected package information

Release Package Patched in
5 glibc glibc-2.5-81.el5_8.4.i386.rpm
glibc glibc-2.5-81.el5_8.4.i686.rpm
glibc glibc-2.5-81.el5_8.4.src.rpm
glibc glibc-2.5-81.el5_8.4.x86_64.rpm
glibc-common glibc-common-2.5-81.el5_8.4.i386.rpm
glibc-common glibc-common-2.5-81.el5_8.4.x86_64.rpm
glibc-devel glibc-devel-2.5-81.el5_8.4.i386.rpm
glibc-devel glibc-devel-2.5-81.el5_8.4.x86_64.rpm
glibc-headers glibc-headers-2.5-81.el5_8.4.i386.rpm
glibc-headers glibc-headers-2.5-81.el5_8.4.x86_64.rpm
glibc-utils glibc-utils-2.5-81.el5_8.4.i386.rpm
glibc-utils glibc-utils-2.5-81.el5_8.4.x86_64.rpm
nscd nscd-2.5-81.el5_8.4.i386.rpm
nscd nscd-2.5-81.el5_8.4.x86_64.rpm