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Mandrake: 'openssh' vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Mandrake There are several weaknesses in various implementations of the SSH (Secure Shell) protocols.

________________________________________________________________________
                
                Linux-Mandrake Security Update Advisory
________________________________________________________________________

Package name:           openssh
Date:                   March 23rd, 2001
Original Advisory Date: March 22nd, 2001
Advisory ID:            MDKSA-2001:033-1

Affected versions:      7.0, 7.1, 7.2, Corporate Server 1.0.1
________________________________________________________________________

Problem Description:
 
 There are several weaknesses in various implementations of the SSH
 (Secure Shell) protocols.  When exploited, they let the attacker obtain
 sensitive information by passively monitoring encrypted SSH sessions.
 The information can later be used to speed up brute-force attacks on
 passwords, including the initial login password and other passwords
 appearing in interactive SSH sessions, such as those used with su.
 Versions of OpenSSH 2.5.0 and later have been fixed to reduce the
 impact of these traffic analysis problems, and as such all Linux-
 Mandrake users are encouraged to upgrade their version of openssh
 immediately.

Update:
 
 In some cases, openssh would disallow logins under Linux-Mandrake 7.0
 and 7.1.  As well, dependency problems have been corrected for 7.0/7.1.
________________________________________________________________________

Please verify the update prior to upgrading to ensure the integrity of
the downloaded package.  You can do this with the command:
  rpm --checksig package.rpm
You can get the GPG public key of the Linux-Mandrake Security Team at
   http://www.linux-mandrake.com/en/security/RPM-GPG-KEYS
If you use MandrakeUpdate, the verification of md5 checksum and GPG
signature is performed automatically for you.

Linux-Mandrake 7.0:
3f12180d28180dcad35f9c1f7f3b985b  7.0/RPMS/openssh-2.5.2p2-1.6mdk.i586.rpm
3723def831bf7871f4300d2e849a49f7  7.0/RPMS/openssh-askpass-2.5.2p2-1.6mdk.i586.rpm
9004c76d523cbd47f70fa6116a1d1b77  7.0/RPMS/openssh-askpass-gnome-2.5.2p2-1.6mdk.i586.rpm
fa59d3267cd0600f85e91cf007fb826c  7.0/RPMS/openssh-clients-2.5.2p2-1.6mdk.i586.rpm
d8ab21a2a755b94bf4ad6c48bcef2048  7.0/RPMS/openssh-server-2.5.2p2-1.6mdk.i586.rpm
b9a433c6cfd4cf1e3dea4305dbe261f6  7.0/SRPMS/openssh-2.5.2p2-1.6mdk.src.rpm

Linux-Mandrake 7.1:
cd03e78ddfc4f9659221b22a37900106  7.1/RPMS/openssh-2.5.2p2-1.5mdk.i586.rpm
f697fce31de44dcfca614161846b5bc4  7.1/RPMS/openssh-askpass-2.5.2p2-1.5mdk.i586.rpm
6f59f101b90721066a961e293112ebe8  7.1/RPMS/openssh-askpass-gnome-2.5.2p2-1.5mdk.i586.rpm
971da9017a8b41e06f2025fc96ad6e9b  7.1/RPMS/openssh-clients-2.5.2p2-1.5mdk.i586.rpm
24796dc6a9b495fa9577073e1bc97206  7.1/RPMS/openssh-server-2.5.2p2-1.5mdk.i586.rpm
106186d5279ad127cae314ffb37bda05  7.1/SRPMS/openssh-2.5.2p2-1.5mdk.src.rpm

Linux-Mandrake 7.2:
aac93da80423bbd1911baf8701bc3f9e  7.2/RPMS/openssh-2.5.2p2-1.1mdk.i586.rpm
20e5c9e8839aa6f2da4e5c0bc8fab7a1  7.2/RPMS/openssh-askpass-2.5.2p2-1.1mdk.i586.rpm
e99243adc1ca8cf88a0f3231f7893321  7.2/RPMS/openssh-askpass-gnome-2.5.2p2-1.1mdk.i586.rpm
a90110f3005e7cb10eaa529bdb3916ad  7.2/RPMS/openssh-clients-2.5.2p2-1.1mdk.i586.rpm
60776d78a45d1d5991291af182eff2be  7.2/RPMS/openssh-server-2.5.2p2-1.1mdk.i586.rpm
b63de9206902d94003b8662d919ce83f  7.2/SRPMS/openssh-2.5.2p2-1.1mdk.src.rpm

Corporate Server 1.0.1:
9158aa57a6513e142a55ce13af9ef12e  1.0.1/RPMS/openssh-2.5.2p2-1.4mdk.i586.rpm
083969a5862a600473c16a99318cbb0b  1.0.1/RPMS/openssh-askpass-2.5.2p2-1.4mdk.i586.rpm
79b9cd749ea0566f5faf0e90066d3902  1.0.1/RPMS/openssh-askpass-gnome-2.5.2p2-1.4mdk.i586.rpm
37fefc958b521a1edba206260817f610  1.0.1/RPMS/openssh-clients-2.5.2p2-1.4mdk.i586.rpm
2d30e7c0b5c75325e2d8f9b4a0408fdd  1.0.1/RPMS/openssh-server-2.5.2p2-1.4mdk.i586.rpm
279b70b43a1751004c731d158cd1fcb8  1.0.1/SRPMS/openssh-2.5.2p2-1.4mdk.src.rpm
________________________________________________________________________

To upgrade automatically, use MandrakeUpdate.

If you want to upgrade manually, download the updated package from one
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".

You can download the updates directly from one of the mirror sites
listed at:

   http://www.linux-mandrake.com/en/ftp.php3.

Updated packages are available in the "updates/[ver]/RPMS/" directory.
For example, if you are looking for an updated RPM package for
Linux-Mandrake 7.2, look for it in "updates/7.2/RPMS/".  Updated source
RPMs are available as well, but you generally do not need to download
them.

Please be aware that sometimes it takes the mirrors a few hours to
update.

You can view other security advisories for Linux-Mandrake at:

   http://www.linux-mandrake.com/en/security/

If you want to report vulnerabilities, please contact

  security@linux-mandrake.com
________________________________________________________________________

Linux-Mandrake has two security-related mailing list services that
anyone can subscribe to:

security-announce@linux-mandrake.com

  Linux-Mandrake's security announcements mailing list.  Only
  announcements are sent to this list and it is read-only.

security-discuss@linux-mandrake.com

  Linux-Mandrake's security discussion mailing list.  This list is open
  to anyone to discuss Linux-Mandrake security specifically and Linux
  security in general.

To subscribe to either list, send a message to
  sympa@linux-mandrake.com
with "subscribe [listname]" in the body of the message.

To remove yourself from either list, send a message to
  sympa@linux-mandrake.com
with "unsubscribe [listname]" in the body of the message.

To get more information on either list, send a message to
  sympa@linux-mandrake.com
with "info [listname]" in the body of the message.

Optionally, you can use the web interface to subscribe to or unsubscribe
from either list:

   http://www.linux-mandrake.com/en/flists.php3#security
________________________________________________________________________


 
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