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From: Slackware Security Team (securitySLACKWARE.COM)
Date: Wed Jan 10 2001 - 22:29:57 CST

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    glibc-2.2 contains a local vulnerability that affects all setuid root
    binaries. Any user on affected systems will be able to read any file on
    the system through a simple process: The user sets the RESOLV_HOST_CONF
    environment variable to the name of the file that they wish to read, then
    runs any setuid root program that makes use of that variable. The file is
    then written to stderr.

    The original BugTraq announcement can be read at the following URL:

       http://www.securityfocus.com/archive/1/155352

    Users of Slackware -current are strongly urged to upgrade to the new
    glibc packages in the -current branch.

    =========================================================================
    glibc 2.2 AVAILABLE - (a1/glibcso.tgz, d1/glibc.tgz)
    =========================================================================

    PACKAGE INFORMATION:
    --------------------
    a1/glibcso.tgz:
       This package contains the runtime libraries for glibc 2.2 All users
       of Slackware -current should upgrade this package.

    d1/glibc.tgz:
       This is the full glibc 2.2 package, complete with headers and static
       libraries. If you had previously installed this package, you need
       to upgrade it.

    WHERE TO FIND THE NEW PACKAGES:
    -------------------------------
    All new packages can be found in the -current branch:

    ftp://ftp.slackware.com/pub/slackware/slackware-current/slakware/a1/glibcso.tgz
    ftp://ftp.slackware.com/pub/slackware/slackware-current/slakware/d1/glibc.tgz

    MD5 SIGNATURES AND CHECKSUMS:
    -----------------------------
    Here are the md5sums and checksums for the packages:

       16-bit "sum" checksum:
       39060 1054 a1/glibcso.tgz
       61562 26779 d1/glibc.tgz

       128-bit MD5 message digest:
       6ea2e3fecf1a1a970f1e37b7be7c12aa a1/glibcso.tgz
       4f1e8ef903f1d0dd675aaf0cc3926177 d1/glibc.tgz

    INSTALLATION INSTRUCTIONS:
    --------------------------
    It is recommended that the two packages above be upgraded in single user
    mode (runlevel 1). Bring the system into runlevel 1:

       # telinit 1

    Then upgrade the packages:

       # upgradepkg <package name>.tgz

    Then bring the system back into multiuser mode:

       # telinit 3

    Remember, it's also a good idea to backup configuration files before
    upgrading packages.

    - Slackware Linux Security Team
      http://www.slackware.com

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