MDKSA-2003:016 - Updated util-linux packages provide stronger randomness in mcookie

From: Mandrake Linux Security Team (security@linux-mandrake.com)
Date: Thu Feb 13 2003 - 16:53:51 PST

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    ________________________________________________________________________
    
                    Mandrake Linux Security Update Advisory
    ________________________________________________________________________
    
    Package name:           util-linux
    Advisory ID:            MDKSA-2003:016
    Date:                   February 13th, 2003
    
    Affected versions:      8.2, 9.0
    ________________________________________________________________________
    
    Problem Description:
    
     The util-linux package provides the mcookie utility, a tool for 
     generating random cookies that can be used for X authentication.  The 
     util-linux packages that were distributed with Mandrake Linux 8.2 and 
     9.0 had a patch that made it use /dev/urandom instead of /dev/random, 
     which resulted in the mcookie being more predictable than it would 
     otherwise be.  This patch has been removed in these updates, giving 
     mcookie a better source of entropy and making the generated cookies 
     less predictable.  Thanks to Dirk Mueller for pointing this out.
    ________________________________________________________________________
    
    References:
    ________________________________________________________________________
    
    Updated Packages:
      
     Mandrake Linux 8.2:
     42ff78fc528a12c85074b9930e5dca40  8.2/RPMS/losetup-2.11n-4.4mdk.i586.rpm
     95d6fa4f6657799dc47eaeb5cb77cafc  8.2/RPMS/mount-2.11n-4.4mdk.i586.rpm
     1a0cd7a36dc16fc6229812669d2bfc87  8.2/RPMS/util-linux-2.11n-4.4mdk.i586.rpm
     6bf632bf623ec261d96b63fb267bd4e9  8.2/SRPMS/util-linux-2.11n-4.4mdk.src.rpm
    
     Mandrake Linux 8.2/PPC:
     a63c201ccb44b3db876e8b730644a449  ppc/8.2/RPMS/losetup-2.11n-4.4mdk.ppc.rpm
     59bce5df786546785a8425006749d0f0  ppc/8.2/RPMS/mount-2.11n-4.4mdk.ppc.rpm
     27591222bc4498183f48fa11f1edbbf3  ppc/8.2/RPMS/util-linux-2.11n-4.4mdk.ppc.rpm
     6bf632bf623ec261d96b63fb267bd4e9  ppc/8.2/SRPMS/util-linux-2.11n-4.4mdk.src.rpm
    
     Mandrake Linux 9.0:
     09586a3e81b2212b8044445fc4559fc5  9.0/RPMS/losetup-2.11u-1.1mdk.i586.rpm
     be9751b84f20ec4bc1ced03c4004dcb4  9.0/RPMS/mount-2.11u-1.1mdk.i586.rpm
     613661ae3c324580e653330814f74756  9.0/RPMS/util-linux-2.11u-1.1mdk.i586.rpm
     757145e95a3a990f0c95589cd0324a71  9.0/SRPMS/util-linux-2.11u-1.1mdk.src.rpm
    ________________________________________________________________________
    
    Bug IDs fixed (see https://qa.mandrakesoft.com for more information):
    ________________________________________________________________________
    
    To upgrade automatically, use MandrakeUpdate.  The verification of md5
    checksums and GPG signatures is performed automatically for you.
    
    If you want to upgrade manually, download the updated package from one
    of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".  A list of
    FTP mirrors can be obtained from:
    
      http://www.mandrakesecure.net/en/ftp.php
    
    Please verify the update prior to upgrading to ensure the integrity of
    the downloaded package.  You can do this with the command:
    
      rpm --checksig <filename>
    
    All packages are signed by MandrakeSoft for security.  You can obtain
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      https://www.mandrakesecure.net/RPM-GPG-KEYS
    
    Please be aware that sometimes it takes the mirrors a few hours to
    update.
    
    You can view other update advisories for Mandrake Linux at:
    
      http://www.mandrakesecure.net/en/advisories/
    
    MandrakeSoft has several security-related mailing list services that
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      http://www.mandrakesecure.net/en/mlist.php
    
    If you want to report vulnerabilities, please contact
    
      security_linux-mandrake.com
    
    Type Bits/KeyID     Date       User ID
    pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team
      <security linux-mandrake.com>
    
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