Message-ID: <20030214005351.20474.qmail@updates.mandrakesoft.com>
From: security at linux-mandrake.com (Mandrake Linux Security Team)
Subject: MDKSA-2003:016 - Updated util-linux packages provide stronger randomness in mcookie

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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
the GPG public key of the Mandrake Linux Security Team from:

  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
anyone can subscribe to.  Information on these lists can be obtained by
visiting:

  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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