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Sicherheit: Verbindungsabbruch durch Sicherheitslücke in rp-pppoe
Aktuelle Meldungen Distributionen
Name: Verbindungsabbruch durch Sicherheitslücke in rp-pppoe
ID: MDKSA-2000:084
Distribution: Mandrake
Plattformen: Mandrake 7.1, Mandrake 7.2
Datum: Mo, 18. Dezember 2000, 12:00
Referenzen: Keine Angabe
Applikationen: rp-pppoe

Originalnachricht

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________________________________________________________________________

Linux-Mandrake Security Update Advisory
________________________________________________________________________

Package name: rp-pppoe
Date: December 18th, 2000
Advisory ID: MDKSA-2000:084

Affected versions: 7.1, 7.2
________________________________________________________________________

Problem Description:

rp-pppoe is a userspace PPPoE client mainly used with ADSL connections
which require PPP. Versions prior to 2.5 have a security problem that,
when exploited, causes the connection to be dropped. If rp-pppoe
receives a crafted TCP segment with an option where the option-length
field is zero (illegal), the program would enter an infinite loop and
the connection would time-out and be dropped. This is only possible
if the user uses the "Clamp MSS" option.
________________________________________________________________________

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:
589bdccafbf374244ea2e940ae6df7ba 7.1/RPMS/rp-pppoe-2.5-2.1mdk.i586.rpm
e07be9faefcf1a58df48e872c9c7c068 7.1/SRPMS/rp-pppoe-2.5-2.1mdk.src.rpm

Linux-Mandrake 7.2:
d64a2bff24c05941624865facbc3ac8e 7.2/RPMS/rp-pppoe-2.5-2.2mdk.i586.rpm
0fdd0cc473288e52e64087025b93f341 7.2/SRPMS/rp-pppoe-2.5-2.2mdk.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 uprade 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
________________________________________________________________________

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


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