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Mandrake: 'openssh' Local privilege escalation vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Mandrake Joost Pol found a bug in the channel code of all versions of OpenSSH from 2.0 to 3.0.2. This bug can allow authenticated users with an existing account on the vulnerable system to obtain root privilege or by a malicious server attacking a vulnerable client.

________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           openssh
Advisory ID:            MDKSA-2002:019
Date:                   March 7th, 2002
Affected versions:      7.1, 7.2, 8.0, 8.1, Corporate Server 1.0.1,
                        Single Network Firewall 7.2
________________________________________________________________________

Problem Description:

 Joost Pol found a bug in the channel code of all versions of OpenSSH
 from 2.0 to 3.0.2.  This bug can allow authenticated users with an
 existing account on the vulnerable system to obtain root privilege or
 by a malicious server attacking a vulnerable client.  OpenSSH 3.1 is
 not vulnerable to this problem.  The provided packages fix this
 vulnerability.
________________________________________________________________________

References:

  http://www.pine.nl/advisories/pine-cert-20020301.txt
  http://marc.theaimsgroup.com/?l=bugtraq&m=101553908201861&w=2
________________________________________________________________________

Updated Packages:

 Linux-Mandrake 7.1:
 bc34824969b478a98a5a5a76d8be06b5  7.1/RPMS/openssh-3.0.2p1-1.7mdk.i586.rpm
 429ebe6c85060b520768175f1b739743  7.1/RPMS/openssh-askpass-3.0.2p1-1.7mdk.i586.rpm
 889aa64afb4602f5f170b8669b8008b0  7.1/RPMS/openssh-askpass-gnome-3.0.2p1-1.7mdk.i586.rpm
 90607450de8453562bad9dbf45bb1f2d  7.1/RPMS/openssh-clients-3.0.2p1-1.7mdk.i586.rpm
 333454f7b2a6b16eb67742ae93c08fce  7.1/RPMS/openssh-server-3.0.2p1-1.7mdk.i586.rpm
 616f318fe1a6a4edb33f299f75916747  7.1/SRPMS/openssh-3.0.2p1-1.7mdk.src.rpm

 Linux-Mandrake 7.2:
 c14977e0a4b7298dd81ab19fdc88440b  7.2/RPMS/openssh-3.0.2p1-1.6mdk.i586.rpm
 35a7b31ed5bda3881677daac6201ef01  7.2/RPMS/openssh-askpass-3.0.2p1-1.6mdk.i586.rpm
 a3dfd2f05699e31617e5f92805efbd01  7.2/RPMS/openssh-askpass-gnome-3.0.2p1-1.6mdk.i586.rpm
 2312e6704c681a217542f18114e42975  7.2/RPMS/openssh-clients-3.0.2p1-1.6mdk.i586.rpm
 26486934d611183d82f51f42e24bb1da  7.2/RPMS/openssh-server-3.0.2p1-1.6mdk.i586.rpm
 93d28e0b0a54ba70a8948f8d099abcbd  7.2/SRPMS/openssh-3.0.2p1-1.6mdk.src.rpm

 Mandrake Linux 8.0:
 0fd791ab728bfcc7fe0378b6b24f168c  8.0/RPMS/openssh-3.1p1-1.1mdk.i586.rpm
 23873cfc4e6fc201fbcf4ae70c858256  8.0/RPMS/openssh-askpass-3.1p1-1.1mdk.i586.rpm
 c61377a9986bd903f7f965fc21db402e  8.0/RPMS/openssh-askpass-gnome-3.1p1-1.1mdk.i586.rpm
 374702df268b15ce2d33b33916fdb0b0  8.0/RPMS/openssh-clients-3.1p1-1.1mdk.i586.rpm
 56f2c487ae041ef662ac45f338f5c331  8.0/RPMS/openssh-server-3.1p1-1.1mdk.i586.rpm
 15e3cdabaf6685e36f2a8c92cf8c68e9  8.0/SRPMS/openssh-3.1p1-1.1mdk.src.rpm

 Mandrake Linux 8.0/ppc:
 6bb51cef03c8c1d6ff84ac8a46be74f4  ppc/8.0/RPMS/openssh-3.1p1-1.1mdk.ppc.rpm
 b655673634b667a27e0d67a49e44dfdc  ppc/8.0/RPMS/openssh-askpass-3.1p1-1.1mdk.ppc.rpm
 e1d9f17730903e3c4d046d75d84bed52  ppc/8.0/RPMS/openssh-askpass-gnome-3.1p1-1.1mdk.ppc.rpm
 bf68372dfee08ecc606d4db37f559722  ppc/8.0/RPMS/openssh-clients-3.1p1-1.1mdk.ppc.rpm
 3c3f67d6ed2bd85174aa9c2654f222bf  ppc/8.0/RPMS/openssh-server-3.1p1-1.1mdk.ppc.rpm
 15e3cdabaf6685e36f2a8c92cf8c68e9  ppc/8.0/SRPMS/openssh-3.1p1-1.1mdk.src.rpm

 Mandrake Linux 8.1:
 44ff50aad9a9696ee747d201b9a3bd5f  8.1/RPMS/openssh-3.1p1-1.1mdk.i586.rpm
 a8d4315ed3b5fab0e8d8f3abcae36ce7  8.1/RPMS/openssh-askpass-3.1p1-1.1mdk.i586.rpm
 4df4ec7a72c4c5dbda179799738b8bd7  8.1/RPMS/openssh-askpass-gnome-3.1p1-1.1mdk.i586.rpm
 a332044cf9eaeaaae0af923d55678e2b  8.1/RPMS/openssh-clients-3.1p1-1.1mdk.i586.rpm
 a2a39c0c29d0c3a7660d8c58023edbe4  8.1/RPMS/openssh-server-3.1p1-1.1mdk.i586.rpm
 15e3cdabaf6685e36f2a8c92cf8c68e9  8.1/SRPMS/openssh-3.1p1-1.1mdk.src.rpm

 Mandrake Linux 8.1/ia64:
 f885782f2ff38dc6a49cc72a2b9d7275  ia64/8.1/RPMS/openssh-3.1p1-1.1mdk.ia64.rpm
 d475cb384418532d86fbdf83833049c8  ia64/8.1/RPMS/openssh-askpass-3.1p1-1.1mdk.ia64.rpm
 eedf9742b96bcc09149b27b0bcd0eec9  ia64/8.1/RPMS/openssh-askpass-gnome-3.1p1-1.1mdk.ia64.rpm
 92d50a697f93113791c45f0e92afb5d8  ia64/8.1/RPMS/openssh-clients-3.1p1-1.1mdk.ia64.rpm
 088704726b7b77d6bee5f16df3eeba09  ia64/8.1/RPMS/openssh-server-3.1p1-1.1mdk.ia64.rpm
 15e3cdabaf6685e36f2a8c92cf8c68e9  ia64/8.1/SRPMS/openssh-3.1p1-1.1mdk.src.rpm

 Corporate Server 1.0.1:
 bc34824969b478a98a5a5a76d8be06b5  1.0.1/RPMS/openssh-3.0.2p1-1.7mdk.i586.rpm
 429ebe6c85060b520768175f1b739743  1.0.1/RPMS/openssh-askpass-3.0.2p1-1.7mdk.i586.rpm
 889aa64afb4602f5f170b8669b8008b0  1.0.1/RPMS/openssh-askpass-gnome-3.0.2p1-1.7mdk.i586.rpm
 90607450de8453562bad9dbf45bb1f2d  1.0.1/RPMS/openssh-clients-3.0.2p1-1.7mdk.i586.rpm
 333454f7b2a6b16eb67742ae93c08fce  1.0.1/RPMS/openssh-server-3.0.2p1-1.7mdk.i586.rpm
 616f318fe1a6a4edb33f299f75916747  1.0.1/SRPMS/openssh-3.0.2p1-1.7mdk.src.rpm

 Single Network Firewall 7.2:
 c14977e0a4b7298dd81ab19fdc88440b  snf7.2/RPMS/openssh-3.0.2p1-1.6mdk.i586.rpm
 35a7b31ed5bda3881677daac6201ef01  snf7.2/RPMS/openssh-askpass-3.0.2p1-1.6mdk.i586.rpm
 a3dfd2f05699e31617e5f92805efbd01  snf7.2/RPMS/openssh-askpass-gnome-3.0.2p1-1.6mdk.i586.rpm
 2312e6704c681a217542f18114e42975  snf7.2/RPMS/openssh-clients-3.0.2p1-1.6mdk.i586.rpm
 26486934d611183d82f51f42e24bb1da  snf7.2/RPMS/openssh-server-3.0.2p1-1.6mdk.i586.rpm
 93d28e0b0a54ba70a8948f8d099abcbd  snf7.2/SRPMS/openssh-3.0.2p1-1.6mdk.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>


-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.0.5 (GNU/Linux)
Comment: For info see  http://www.gnupg.org

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