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Category:   Application (File Transfer/Sharing)  >   gFTP Vendors:   Masney, Brian
(Mandrake Releases Fix) Re: gFTP Client May Allow Remote FTP Servers to Cause the FTP Client to Execute Arbitrary Code on the User's Host
SecurityTracker Alert ID:  1001453
SecurityTracker URL:  http://securitytracker.com/id/1001453
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Apr 28 2001
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.0.8
Description:   It is reported that the gFTP client contains a vulnerability that may allow a remote server to cause arbitrary code to be executed on the client user's host.

The software reportedly contains a format string security problem in the logging of ftp and http responses. This apparently allows malicious ftp servers to potentially execute code on the gFTP user's system. No further details are available.

Impact:   A malicious ftp server could potentially execute code on the gFTP user's system when the user connects to the server. The malicious server could also cause the gFTP client to crash.
Solution:   Mandrake has released a fix. See the Source Message for the vendor bulletin.
Vendor URL:  gftp.seul.org/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Mandriva/Mandrake)

Message History:   This archive entry is a follow-up to the message listed below.
Apr 28 2001 gFTP Client May Allow Remote FTP Servers to Cause the FTP Client to Execute Arbitrary Code on the User's Host



 Source Message Contents

Subject:  MDKSA-2001:044 - gftp update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

________________________________________________________________________

                Linux-Mandrake Security Update Advisory
________________________________________________________________________

Package name:           gftp
Date:                   April 27th, 2001
Advisory ID:            MDKSA-2001:044

Affected versions:      7.1, 7.2, 8.0, Corporate Server 1.0.1

References:		http://gftp.seul.org/changelog.html
________________________________________________________________________

Problem Description:

 A format string vulnerability exists in all versions of gftp prior to
 version 2.0.8.  This vulnerability has been fixed upstream in version
 2.0.8.
________________________________________________________________________

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 7.1:
245b8c2e9be141c516e4f3929392a674  7.1/RPMS/gftp-2.0.8-1.2mdk.i586.rpm
9ee9e9ee732f268bb5b18a0dbc9d1da4  7.1/SRPMS/gftp-2.0.8-1.2mdk.src.rpm

Linux-Mandrake 7.2:
0bb0f6b284a834cac70e5f3f356fcbf7  7.2/RPMS/gftp-2.0.8-1.1mdk.i586.rpm
056e45f8a2a596baff3aca26215006e6  7.2/SRPMS/gftp-2.0.8-1.1mdk.src.rpm

Linux-Mandrake 8.0:
dff897a7e0e887f5fcafd2173b5e1aa6  8.0/RPMS/gftp-2.0.8-1.1mdk.i586.rpm
056e45f8a2a596baff3aca26215006e6  8.0/SRPMS/gftp-2.0.8-1.1mdk.src.rpm

Corporate Server 1.0.1:
245b8c2e9be141c516e4f3929392a674  1.0.1/RPMS/gftp-2.0.8-1.2mdk.i586.rpm
9ee9e9ee732f268bb5b18a0dbc9d1da4  1.0.1/SRPMS/gftp-2.0.8-1.2mdk.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 8.0, look for it in "updates/8.0/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
________________________________________________________________________

Type Bits/KeyID     Date       User ID
pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team
  <security@linux-mandrake.com>


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