From: security at linux-mandrake.com (Mandrake Linux Security Team)
Subject: MDKSA-2003:043 - Updated krb5 packages fix multiple vulnerabilities

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________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           krb5
Advisory ID:            MDKSA-2003:043
Date:                   April 1st, 2003

Affected versions:	8.2, 9.0, 9.1, Corporate Server 2.1,
			Multi Network Firewall 8.2
________________________________________________________________________

Problem Description:

 Multiple vulnerabilties have been found in the Kerberos network
 authentication system.  The MIT Kerberos team have released an
 advisory detailing these vulnerabilties, a description of which
 follows.
 
 An integer signedness error in the ASN.1 decoder before version 1.2.5
 allows remote attackers to cause a crash of the server via a large
 unsigned data element length, which is later used as a negative
 value (CAN-2002-0036).  Mandrake Linux 9.0+ is not affected by
 this problem.
 
 Vulnerabilties have been found in the RPC library used by the kadmin
 service.  A faulty length check in the RPC library exposes kadmind to
 an integer overflow which can be used to crash kadmind (CAN-2003-0028).
 
 The KDC (Key Distribution Center) before version 1.2.5 allows remote,
 authenticated attackers to cause a crash on KDCs within the same realm
 using a certain protocol that causes a null dereference
 (CAN-2003-0058).  Mandrake Linux 9.0+ is not affected by this problem.
 
 Users from one realm can impersonate users in other realms that have
 the same inter-realm keys due to a vulnerability in Kerberos 1.2.3
 and earlier (CAN-2003-0059).  Mandrake Linux 9.0+ is not affected by
 this problem.
 
 The KDC allows remote, authenticated users to cause a crash on KDCs
 within the same realm using a certain protocol request that causes an
 out-of-bounds read of an array (CAN-2003-0072).
 
 The KDC allows remote, authenticated users to cause a crash on KDCs
 within the same realm using a certain protocol request that causes the
 KDC to corrupt its heap (CAN-2003-0082).
 
 Vulnerabilities have been discovered in the Kerberos IV authentication
 protocol which allow an attacker with knowledge of a cross-realm key,
 which is shared in another realm, to impersonate a principle in that
 realm to any service in that realm.  This vulnerability can only
 be closed by disabling cross-realm authentication in Kerberos IV
 (CAN-2003-0138).
 
 Vulnerabilities have been discovered in the support for triple-DES
 keys in the Kerberos IV authentication protocol which is included
 in MIT Kerberos (CAN-2003-0139).
 
 MandrakeSoft encourages all users to upgrade to these updated packages
 immediately which contain patches to correct all of the previously
 noted vulnerabilities.  These packages also disable Kerberos IV
 cross-realm authentication by default.
________________________________________________________________________

References:
  
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0036
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0028
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0058
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0059
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0072
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0082
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0138
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0139
  http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-001-multiple.txt
  http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-003-xdr.txt
  http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-004-krb4.txt
  http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-005-buf.txt
________________________________________________________________________

Updated Packages:
  
 Corporate Server 2.1:
 ff044a2e3b1fa2c6b6a3f8567700bacc  corporate/2.1/RPMS/ftp-client-krb5-1.2.5-1.4mdk.i586.rpm
 c9b9190ecdcb4afc7d235a4d14acccfb  corporate/2.1/RPMS/ftp-server-krb5-1.2.5-1.4mdk.i586.rpm
 32ba407c1aef46b95cd9132fb7bc60a8  corporate/2.1/RPMS/krb5-devel-1.2.5-1.4mdk.i586.rpm
 2a32898602de8551967c38414884e91c  corporate/2.1/RPMS/krb5-libs-1.2.5-1.4mdk.i586.rpm
 b09f0544b8a685ec351ba0cbd18ed8aa  corporate/2.1/RPMS/krb5-server-1.2.5-1.4mdk.i586.rpm
 bd412c5533f4fbcd216c96693122d798  corporate/2.1/RPMS/krb5-workstation-1.2.5-1.4mdk.i586.rpm
 eaf68d6ef678c4400cbdec38493f6a32  corporate/2.1/RPMS/telnet-client-krb5-1.2.5-1.4mdk.i586.rpm
 e9ffe51915f095ed19ff83b95a16be7f  corporate/2.1/RPMS/telnet-server-krb5-1.2.5-1.4mdk.i586.rpm
 78ea5596dfae26c7eeabcc25363850eb  corporate/2.1/SRPMS/krb5-1.2.5-1.4mdk.src.rpm

 Mandrake Linux 8.2:
 819b0b7829b0ab6f0ffa03981bcb113b  8.2/RPMS/ftp-client-krb5-1.2.2-17.5mdk.i586.rpm
 78238c5be9024658c709b660a27d86b1  8.2/RPMS/ftp-server-krb5-1.2.2-17.5mdk.i586.rpm
 7484f3fffb575234257fecd38ab399b6  8.2/RPMS/krb5-devel-1.2.2-17.5mdk.i586.rpm
 05f945beb43d5d7eef33513714bed38b  8.2/RPMS/krb5-libs-1.2.2-17.5mdk.i586.rpm
 7989b492dc7282ccc1b4ea07461f81d5  8.2/RPMS/krb5-server-1.2.2-17.5mdk.i586.rpm
 87e3129f28b44deee2afb579fc1aba44  8.2/RPMS/krb5-workstation-1.2.2-17.5mdk.i586.rpm
 d577b4d921592ce650aa6143ddeecbcd  8.2/RPMS/telnet-client-krb5-1.2.2-17.5mdk.i586.rpm
 2c27ad5354c7d46ef423d69472e38fc6  8.2/RPMS/telnet-server-krb5-1.2.2-17.5mdk.i586.rpm
 d461701e513378feb8656c89653b29c2  8.2/SRPMS/krb5-1.2.2-17.5mdk.src.rpm

 Mandrake Linux 8.2/PPC:
 0c5028a103cecd754a6f506964bf4448  ppc/8.2/RPMS/ftp-client-krb5-1.2.2-17.5mdk.ppc.rpm
 c68e111876b2320f24c1c22e8e6df1b1  ppc/8.2/RPMS/ftp-server-krb5-1.2.2-17.5mdk.ppc.rpm
 fdffb190e2faacee2cf550c09d2aeabd  ppc/8.2/RPMS/krb5-devel-1.2.2-17.5mdk.ppc.rpm
 d77d17bdfad6f0ee3e253ff55daeec91  ppc/8.2/RPMS/krb5-libs-1.2.2-17.5mdk.ppc.rpm
 80a5e1fc2221a7ede39385da2defdad9  ppc/8.2/RPMS/krb5-server-1.2.2-17.5mdk.ppc.rpm
 66adac55615ce0254222a1ea38847c69  ppc/8.2/RPMS/krb5-workstation-1.2.2-17.5mdk.ppc.rpm
 809a854ca25dff7a3b8e29589b7bc7ea  ppc/8.2/RPMS/telnet-client-krb5-1.2.2-17.5mdk.ppc.rpm
 4179fe8cd8b7a5f00cfad87bd07f341e  ppc/8.2/RPMS/telnet-server-krb5-1.2.2-17.5mdk.ppc.rpm
 d461701e513378feb8656c89653b29c2  ppc/8.2/SRPMS/krb5-1.2.2-17.5mdk.src.rpm

 Mandrake Linux 9.0:
 ff044a2e3b1fa2c6b6a3f8567700bacc  9.0/RPMS/ftp-client-krb5-1.2.5-1.4mdk.i586.rpm
 c9b9190ecdcb4afc7d235a4d14acccfb  9.0/RPMS/ftp-server-krb5-1.2.5-1.4mdk.i586.rpm
 32ba407c1aef46b95cd9132fb7bc60a8  9.0/RPMS/krb5-devel-1.2.5-1.4mdk.i586.rpm
 2a32898602de8551967c38414884e91c  9.0/RPMS/krb5-libs-1.2.5-1.4mdk.i586.rpm
 b09f0544b8a685ec351ba0cbd18ed8aa  9.0/RPMS/krb5-server-1.2.5-1.4mdk.i586.rpm
 bd412c5533f4fbcd216c96693122d798  9.0/RPMS/krb5-workstation-1.2.5-1.4mdk.i586.rpm
 eaf68d6ef678c4400cbdec38493f6a32  9.0/RPMS/telnet-client-krb5-1.2.5-1.4mdk.i586.rpm
 e9ffe51915f095ed19ff83b95a16be7f  9.0/RPMS/telnet-server-krb5-1.2.5-1.4mdk.i586.rpm
 78ea5596dfae26c7eeabcc25363850eb  9.0/SRPMS/krb5-1.2.5-1.4mdk.src.rpm

 Mandrake Linux 9.1:
 b5888bcb397105c47541289de9ab123e  9.1/RPMS/ftp-client-krb5-1.2.7-1.1mdk.i586.rpm
 eb5560bd11eeb6648528181ad08e7f48  9.1/RPMS/ftp-server-krb5-1.2.7-1.1mdk.i586.rpm
 5bc475f74920c7a06af22dee2ef7cc9d  9.1/RPMS/krb5-devel-1.2.7-1.1mdk.i586.rpm
 1169c020d1f61107955067cf4f1830fc  9.1/RPMS/krb5-libs-1.2.7-1.1mdk.i586.rpm
 24e6126c8fc8830b3855bb6880c347f8  9.1/RPMS/krb5-server-1.2.7-1.1mdk.i586.rpm
 16d43cf77c24e26bc9f05c2cbfc2ba46  9.1/RPMS/krb5-workstation-1.2.7-1.1mdk.i586.rpm
 823c27610e62c7b57c4dac0bb25a1f31  9.1/RPMS/telnet-client-krb5-1.2.7-1.1mdk.i586.rpm
 cfba29048f25817c4bd296def06f3bf2  9.1/RPMS/telnet-server-krb5-1.2.7-1.1mdk.i586.rpm
 3767fc890e9bb238de9e86a4a954e51f  9.1/SRPMS/krb5-1.2.7-1.1mdk.src.rpm

 Mandrake Linux 9.1/PPC:
 ff2ee32a87f4eb4d5d71fc141e07a653  ppc/9.1/RPMS/ftp-client-krb5-1.2.7-1.1mdk.ppc.rpm
 d440d74811fbb8b639ed2beef6cb6183  ppc/9.1/RPMS/ftp-server-krb5-1.2.7-1.1mdk.ppc.rpm
 ed860ab1279b3905e7a7b1f7bcd16cd3  ppc/9.1/RPMS/krb5-devel-1.2.7-1.1mdk.ppc.rpm
 874113d397b64692cb5da3dac077b050  ppc/9.1/RPMS/krb5-libs-1.2.7-1.1mdk.ppc.rpm
 e04607def631281fdd5adccf14957fff  ppc/9.1/RPMS/krb5-server-1.2.7-1.1mdk.ppc.rpm
 d4125d6cd39eddd59e154669ac1d9cbc  ppc/9.1/RPMS/krb5-workstation-1.2.7-1.1mdk.ppc.rpm
 5084b151cdbd8f9214c886c7a95f3e39  ppc/9.1/RPMS/telnet-client-krb5-1.2.7-1.1mdk.ppc.rpm
 583b9695b76165a1d512de40cecc8e5c  ppc/9.1/RPMS/telnet-server-krb5-1.2.7-1.1mdk.ppc.rpm
 3767fc890e9bb238de9e86a4a954e51f  ppc/9.1/SRPMS/krb5-1.2.7-1.1mdk.src.rpm

 Multi Network Firewall 8.2:
 05f945beb43d5d7eef33513714bed38b  mnf8.2/RPMS/krb5-libs-1.2.2-17.5mdk.i586.rpm
 d461701e513378feb8656c89653b29c2  mnf8.2/SRPMS/krb5-1.2.2-17.5mdk.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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