Users login

Create an account »


Users login

Home » Hacking News » DSA 152-1-l2tpd

DSA 152-1-l2tpd

by Nikola Strahija on August 14th, 2002 Current versions of l2tpd, a layer 2 tunneling client/server program, forgot to initialize the random generator which made it vulnerable since all generated random number were 100% guessable. When dealing with the size of the value in an attribute value pair, too many bytes were able to be copied, which could lead into the vendor field being overwritten.

These problems have been fixed in version 0.67-1.1 for the current
stable distribution (woody) and in version 0.68-1 for the unstable
distribution (sid). The old stable distribution (potato) is not
affected, since it doesn't contain the l2tpd package.

We recommend that you upgrade your l2tpd packages.

wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
will update the internal database
apt-get upgrade
will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.

Debian GNU/Linux 3.0 alias woody
- --------------------------------

Source archives:
Size/MD5 checksum: 556 ffe4fded4647ac003ffdd4978661ca15
Size/MD5 checksum: 2339 b647394faed6dba02687e7709299836a
Size/MD5 checksum: 121685 d40065070e34c44389e4c749b61916c6

Alpha architecture:
Size/MD5 checksum: 99940 a3caa77d343536f68753ea64aa336a45

ARM architecture:
Size/MD5 checksum: 90756 603a9b88e98001c1602d464571dce765

Intel IA-32 architecture:
Size/MD5 checksum: 88130 bbd745997296fd61edc9777de121c9a5

Intel IA-64 architecture:
Size/MD5 checksum: 110726 dc180c2040f8f29f868e5039e09b0879

HP Precision architecture:
Size/MD5 checksum: 94918 9629d5a679cf336036d485a32fa0b6db

Motorola 680x0 architecture:
Size/MD5 checksum: 84818 c61280d6f968b9052dfc9f9e5c34cbd5

Big endian MIPS architecture:
Size/MD5 checksum: 94608 62cfeab1e06185f58b79c7c8f3b93cce

Little endian MIPS architecture:
Size/MD5 checksum: 94944 6d164b24e067355b26b7234434ff21cb

PowerPC architecture:
Size/MD5 checksum: 89318 a736a5fc05493393e1b0ade0097f60a0

IBM S/390 architecture:
Size/MD5 checksum: 87736 6e1d259729d21a92537c38d315f0286f

Sun Sparc architecture:
Size/MD5 checksum: 91790 faade7c56590eae84e8b0ef14014a29b

These files will probably be moved into the stable distribution on
its next revision.

For apt-get: deb stable/updates main
For dpkg-ftp:
Mailing list: [email protected]
Package info: `apt-cache show ' and

Version: GnuPG v1.0.7 (GNU/Linux)


Newsletter signup

Signup to our monthly newsletter and stay in touch with IT news!

Free E-books

We've got ebooks! But they're not online. :( Please give us a few days to bring downloads back.


Have something to say or just wanna drop us a line? Please keep this in mind: to spam, we reply with spam.

Contact us »