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Mandrake: 'telnet' buffer overflow Print E-mail
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Posted by Team   
Mandrake A buffer overflow exists in telnet which could provide root access to local users.


                Mandrake Linux Security Update Advisory

Package name:           telnet
Date:                   August 13th, 2001
Advisory ID:            MDKSA-2001:068

Affected versions:      7.1, 7.2, 8.0, Corporate Server 1.0.1,
                        Single Network Firewall 7.2

Problem Description:

 A buffer overflow exists in telnet which could provide root access to
 local users.



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 Mandrake Linux Security Team at
If you use MandrakeUpdate, the verification of md5 checksum and GPG
signature is performed automatically for you.

Linux-Mandrake 7.1:
0c25fb858b93cbbc30a8f16ff80952d8  7.1/RPMS/telnet-0.16-4.1mdk.i586.rpm
a2a90ff0bcfa1c3f4da1008900bb2b98  7.1/RPMS/telnet-server-0.16-4.1mdk.i586.rpm
a960f23b3bc9113ba2696d8b23e9fe3d  7.1/SRPMS/telnet-0.16-4.1mdk.src.rpm

Linux-Mandrake 7.2:
a6f72da6eef4874c419d82ef23e58363  7.2/RPMS/telnet-0.17-7.1mdk.i586.rpm
97f93cbfb8283c6eaaa8046aa3f6aa55  7.2/RPMS/telnet-server-0.17-7.1mdk.i586.rpm
666dddb9572c03a8122c7428066bebdc  7.2/SRPMS/telnet-0.17-7.1mdk.src.rpm

Mandrake Linux 8.0:
77cb8c2f140eb51ff0e303b228585213  8.0/RPMS/telnet-0.17-7.1mdk.i586.rpm
9bcd5a4bb716f6ae25beb0460996665f  8.0/RPMS/telnet-server-0.17-7.1mdk.i586.rpm
666dddb9572c03a8122c7428066bebdc  8.0/SRPMS/telnet-0.17-7.1mdk.src.rpm

Corporate Server 1.0.1:
0c25fb858b93cbbc30a8f16ff80952d8  1.0.1/RPMS/telnet-0.16-4.1mdk.i586.rpm
a2a90ff0bcfa1c3f4da1008900bb2b98  1.0.1/RPMS/telnet-server-0.16-4.1mdk.i586.rpm
a960f23b3bc9113ba2696d8b23e9fe3d  1.0.1/SRPMS/telnet-0.16-4.1mdk.src.rpm

Single Network Firewall 7.2:
a6f72da6eef4874c419d82ef23e58363  snf7.2/RPMS/telnet-0.17-7.1mdk.i586.rpm
97f93cbfb8283c6eaaa8046aa3f6aa55  snf7.2/RPMS/telnet-server-0.17-7.1mdk.i586.rpm
666dddb9572c03a8122c7428066bebdc  snf7.2/SRPMS/telnet-0.17-7.1mdk.src.rpm

Bug IDs fixed (see for more information):


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:

Updated packages are available in the "updates/[ver]/RPMS/" directory.
For example, if you are looking for an updated RPM package for
Mandrake Linux 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

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

You can view other security advisories for Mandrake Linux at:

If you want to report vulnerabilities, please contact

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

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

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

To subscribe to either list, send a message to
with "subscribe [listname]" in the body of the message.

To remove yourself from either list, send a message to
with "unsubscribe [listname]" in the body of the message.

To get more information on either list, send a message to
with "info [listname]" in the body of the message.

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

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