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Mandrake: 'proftpd' DoS Print E-mail
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Posted by LinuxSecurity.com Team   
Mandrake The ProFTPD FTP server has problems with memory leaking that could be used in a DoS attack, as reported by Wojciech Purczynski.

________________________________________________________________________

                Linux-Mandrake Security Update Advisory
________________________________________________________________________

Package name:           proftpd
Date:                   February 8th, 2001
Advisory ID:            MDKSA-2001:021

Affected versions:      7.2
________________________________________________________________________

Problem Description:

 The ProFTPD FTP server has problems with memory leaking that could be
 used in a DoS attack, as reported by Wojciech Purczynski.  A memory
 leak will happen every time a SIZE command was given provided that the
 scoreboard file is not writable, which is not the case in a default
 Linux-Mandrake installation.  A similar problem also existed with
 the USER command where every time it was given the server would use
 more memory.  Additionally, some format string vulnerabilities were
 reported by Przemyslaw Frasunek which have also been fixed.
________________________________________________________________________

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 7.2:
a2e330bd49855d74bfbb2f1e80c3e312  7.2/RPMS/proftpd-1.2.0rc3-1.1mdk.i586.rpm
3ec2a5ee6b834e1193de5e3b738eaa53  7.2/SRPMS/proftpd-1.2.0rc3-1.1mdk.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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