Critical CentOS glibc Security Update


glibc-2.5-123.el5_11.1.i386.rpm, glibc-2.5-123.el5_11.1.i686.rpm, glibc-2.5-123.el5_11.1.src.rpm, glibc-2.5-123.el5_11.1.x86_64.rpm, glibc-common-2.5-123.el5_11.1.i386.rpm, glibc-common-2.5-123.el5_11.1.x86_64.rpm, glibc-devel-2.5-123.el5_11.1.i386.rpm, glibc-devel-2.5-123.el5_11.1.x86_64.rpm, glibc-headers-2.5-123.el5_11.1.i386.rpm, glibc-headers-2.5-123.el5_11.1.x86_64.rpm, glibc-utils-2.5-123.el5_11.1.i386.rpm, glibc-utils-2.5-123.el5_11.1.x86_64.rpm, nscd-2.5-123.el5_11.1.i386.rpm, nscd-2.5-123.el5_11.1.x86_64.rpm
2017-07-27 19:08
CVE-2015-0235 glibc
CVE-2015-0235 eglibc
2017-04-01 19:08
2017-01-05 20:12


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

Red Hat Product Security has rated this update as having Critical 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 libraries (libc), POSIX thread
libraries (libpthread), standard math libraries (libm), and the Name
Server Caching Daemon (nscd) used by multiple programs on the system.
Without these libraries, the Linux system cannot function correctly.

A heap-based buffer overflow was found in glibc's
__nss_hostname_digits_dots() function, which is used by the gethostbyname()
and gethostbyname2() glibc function calls. A remote attacker able to make
an application call either of these functions could use this flaw to
execute arbitrary code with the permissions of the user running the
application. (CVE-2015-0235)

Red Hat would like to thank Qualys for reporting this issue.

All glibc users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue.
Please see

Am I vulnerable?

The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.

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Affected package information

Release Package Patched in
5 glibc glibc-2.5-123.el5_11.1.i386.rpm
glibc glibc-2.5-123.el5_11.1.i686.rpm
glibc glibc-2.5-123.el5_11.1.src.rpm
glibc glibc-2.5-123.el5_11.1.x86_64.rpm
glibc-common glibc-common-2.5-123.el5_11.1.i386.rpm
glibc-common glibc-common-2.5-123.el5_11.1.x86_64.rpm
glibc-devel glibc-devel-2.5-123.el5_11.1.i386.rpm
glibc-devel glibc-devel-2.5-123.el5_11.1.x86_64.rpm
glibc-headers glibc-headers-2.5-123.el5_11.1.i386.rpm
glibc-headers glibc-headers-2.5-123.el5_11.1.x86_64.rpm
glibc-utils glibc-utils-2.5-123.el5_11.1.i386.rpm
glibc-utils glibc-utils-2.5-123.el5_11.1.x86_64.rpm
nscd nscd-2.5-123.el5_11.1.i386.rpm
nscd nscd-2.5-123.el5_11.1.x86_64.rpm