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  1. #1

    glibc upgrade

    Hello Experts,

    Currently we are running centos 5.8 with kernel version kernel-PAE-2.6.18-308.4.1.el5 and glibc of version glibc-2.5-81. Due to vulnerabilities afftected in the glibc version we are planning to upgrade the glibc to 2.15.

    Now the question is,for upgrading the glibc to 2.15 requries in upgrade in centos and kernel versions too.

    Any help on this will be highly appreciated :

  2. #2
    Linux Guru
    Join Date
    Dec 2013
    Victoria, B.C. Canada
    The kernel doesn't use glibc. Pretty much anything that dynamic links to it can break with an upgrade though and this means all the utilities that are thought of as linux. That means that unless you're up for a major PITA you need to upgrade the OS.

    $ file /bin/mkdir
    /bin/mkdir: ELF 64-bit LSB  executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=38ec1d69c1ab04a003136cc28c9f97bcf862eb50, stripped

  3. #3
    Thanks a lot for the update

  4. $spacer_open
  5. #4
    Trusted Penguin Irithori's Avatar
    Join Date
    May 2009
    +1 gregm
    If you change the glibc outside of regular redhat updates, you either need to know *exactly* what you do and why or.. your system is down.

    Other than that:
    RedHat offers a stable system by providing backports.
    So if that vulnerability is known, then redhat will have addressed and patched that already.
    In other words: If you do a regular "yum update", your system will not be vulnerable anymore.
    You must always face the curtain with a bow.

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