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Mandrake: krb5 buffer overflow vulnerability Print E-mail
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Posted by LinuxSecurity.com Team   
Mandrake A stack buffer overflow in the implementation of the Kerberos v4 compatibility administration daemon (kadmind4) in the krb5 package can be exploited to gain unauthorized root access to a KDC host.

________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           krb5
Advisory ID:            MDKSA-2002:073
Date:                   October 29th, 2002
Affected versions:      8.1, 8.2, 9.0
________________________________________________________________________

Problem Description:

 A stack buffer overflow in the implementation of the Kerberos v4
 compatibility administration daemon (kadmind4) in the krb5 package can
 be exploited to gain unauthorized root access to a KDC host.
 Authentication to the daemon is not required to successfully perform
 the attack and according to MIT at least one exploit is known to exist.
 kadmind4 is used only by sites that require compatibility with legacy
 administrative clients, and sites that do not have these needs are
 likely not using kadmind4 and are not affected.

 MandrakeSoft encourages all users who use Kerberos to upgrade to these
 packages immediately.
________________________________________________________________________

References:

   http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2002-002-kadm4.txt
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1235
   http://www.kb.cert.org/vuls/id/875073
________________________________________________________________________

Updated Packages:

 Mandrake Linux 8.1:
 bada604868fecb91a0bbde8b5a2b9c98  8.1/RPMS/ftp-client-krb5-1.2.2-17.2mdk.i586.rpm
 bb95c14c5f485c7322bb186bcf83784d  8.1/RPMS/ftp-server-krb5-1.2.2-17.2mdk.i586.rpm
 73cbc56e123d6ae3b8edb1b056e71732  8.1/RPMS/krb5-devel-1.2.2-17.2mdk.i586.rpm
 233973b866b9fe0bcceec6b447ac1494  8.1/RPMS/krb5-libs-1.2.2-17.2mdk.i586.rpm
 ea997ef796b93acd0ba0ac8dd9ed896c  8.1/RPMS/krb5-server-1.2.2-17.2mdk.i586.rpm
 652e0dc9eaea1b3ed527007e4b74c159  8.1/RPMS/krb5-workstation-1.2.2-17.2mdk.i586.rpm
 814eaa802ddcc1ccc514be0275294e7c  8.1/RPMS/telnet-client-krb5-1.2.2-17.2mdk.i586.rpm
 eab29a806edb9f97f4e3284a5163777f  8.1/RPMS/telnet-server-krb5-1.2.2-17.2mdk.i586.rpm
 bde71e39d690d438d3ba82daf8e896f3  8.1/SRPMS/krb5-1.2.2-17.2mdk.src.rpm

 Mandrake Linux 8.1/ia64:
 b945de65dfd8455970e8e1943e98015d  ia64/8.1/RPMS/ftp-client-krb5-1.2.2-17.2mdk.ia64.rpm
 cb0dab875edb959672059e4aff66d197  ia64/8.1/RPMS/ftp-server-krb5-1.2.2-17.2mdk.ia64.rpm
 1daafa5656299bfb526de5ab6d2d405f  ia64/8.1/RPMS/krb5-devel-1.2.2-17.2mdk.ia64.rpm
 b9897886faf30bd9f1bcd43c92de9374  ia64/8.1/RPMS/krb5-libs-1.2.2-17.2mdk.ia64.rpm
 ce1bd08414dc323f3d1070eaf441ccde  ia64/8.1/RPMS/krb5-server-1.2.2-17.2mdk.ia64.rpm
 ad978831f694245c8cf5c4e9bee458bd  ia64/8.1/RPMS/krb5-workstation-1.2.2-17.2mdk.ia64.rpm
 80088e2bc3c6370608b9c2673a079021  ia64/8.1/RPMS/telnet-client-krb5-1.2.2-17.2mdk.ia64.rpm
 9cbdc9ef8325306ccbcb9231edeae774  ia64/8.1/RPMS/telnet-server-krb5-1.2.2-17.2mdk.ia64.rpm
 bde71e39d690d438d3ba82daf8e896f3  ia64/8.1/SRPMS/krb5-1.2.2-17.2mdk.src.rpm

 Mandrake Linux 8.2:
 c7faaae6a92595141ab384c7aad1e5e9  8.2/RPMS/ftp-client-krb5-1.2.2-17.2mdk.i586.rpm
 8c6c7303ec94041f373eeb07941b700b  8.2/RPMS/ftp-server-krb5-1.2.2-17.2mdk.i586.rpm
 d84549665e0e5ad31cb9db10277914b7  8.2/RPMS/krb5-devel-1.2.2-17.2mdk.i586.rpm
 fcb95fb3e5b488ff0b18dcdcf2edd56a  8.2/RPMS/krb5-libs-1.2.2-17.2mdk.i586.rpm
 01a601b8247ff47f18d8ec01c480c4a2  8.2/RPMS/krb5-server-1.2.2-17.2mdk.i586.rpm
 1a6fc1ef10b834c5b16a2640b2a5a144  8.2/RPMS/krb5-workstation-1.2.2-17.2mdk.i586.rpm
 54f230f69ae6913e2f25471d62cea6e2  8.2/RPMS/telnet-client-krb5-1.2.2-17.2mdk.i586.rpm
 e09ce4b41e65f9e704698ac54a23d256  8.2/RPMS/telnet-server-krb5-1.2.2-17.2mdk.i586.rpm
 bde71e39d690d438d3ba82daf8e896f3  8.2/SRPMS/krb5-1.2.2-17.2mdk.src.rpm

 Mandrake Linux 8.2/ppc:
 aa2b64279ba9e41f5634c7da0fcfef5f  ppc/8.2/RPMS/ftp-client-krb5-1.2.2-17.2mdk.ppc.rpm
 732df990428db9e74fc3a16d4b5432be  ppc/8.2/RPMS/ftp-server-krb5-1.2.2-17.2mdk.ppc.rpm
 a09f5be5fe99a25e6c77eccc7a6b676a  ppc/8.2/RPMS/krb5-devel-1.2.2-17.2mdk.ppc.rpm
 54b2345a5d008f666cf06453016e45bb  ppc/8.2/RPMS/krb5-libs-1.2.2-17.2mdk.ppc.rpm
 0d9b9578fef5beca8b587bf70e6f6f07  ppc/8.2/RPMS/krb5-server-1.2.2-17.2mdk.ppc.rpm
 a30642ba343d7cd41560aa369a69d7ee  ppc/8.2/RPMS/krb5-workstation-1.2.2-17.2mdk.ppc.rpm
 93dfbf686664bbff51604ec481a6e187  ppc/8.2/RPMS/telnet-client-krb5-1.2.2-17.2mdk.ppc.rpm
 f7513633f6b195ec5f3a4ba2acb516b9  ppc/8.2/RPMS/telnet-server-krb5-1.2.2-17.2mdk.ppc.rpm
 bde71e39d690d438d3ba82daf8e896f3  ppc/8.2/SRPMS/krb5-1.2.2-17.2mdk.src.rpm

 Mandrake Linux 9.0:
 78ed01da6f7b5c0932cce2aab712eaa8  9.0/RPMS/ftp-client-krb5-1.2.5-1.1mdk.i586.rpm
 478aa92b97dee775487723e766899a2a  9.0/RPMS/ftp-server-krb5-1.2.5-1.1mdk.i586.rpm
 60feed51cf43074188603da3a747acf6  9.0/RPMS/krb5-devel-1.2.5-1.1mdk.i586.rpm
 cbb7af2f3d9714c169245929da744352  9.0/RPMS/krb5-libs-1.2.5-1.1mdk.i586.rpm
 3cffa28874f6fa0083deb7b5fab32028  9.0/RPMS/krb5-server-1.2.5-1.1mdk.i586.rpm
 0f5cc460d95b876ab5b83a5dcaf2abdf  9.0/RPMS/krb5-workstation-1.2.5-1.1mdk.i586.rpm
 05fb47025e02a74c29e0a46ab58a4712  9.0/RPMS/telnet-client-krb5-1.2.5-1.1mdk.i586.rpm
 7b5175591bd819b0c2ff94f9c803cc96  9.0/RPMS/telnet-server-krb5-1.2.5-1.1mdk.i586.rpm
 e6fe8202ff37143efb1236f794784b4b  9.0/SRPMS/krb5-1.2.5-1.1mdk.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 

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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