you can
1. download the update package from web, the required the packages are,
glibc-2.3.2-27.9.7.i386.rpm
glibc-common-2.3.2-27.9.7.i386.rpm
glibc-debug-2.3.2-27.9.7.i386.rpm
glibc-devel-2.3.2-27.9.7.i386.rpm
glibc-profile-2.3.2-27.9.7.i386.rpm
glibc-utils-2.3.2-27.9.7.i386.rpm
nscd-2.3.2-27.9.7.i386.rpm
2. rpm -Uvh glibc*
rpm -Uvh nscd-2.3.2-27.9.7.i386.rpm