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TUCoPS :: Linux :: Debian :: dsa-1521.txt

l2tpd missing random seed - Debian Security Advisory DSA 152-1




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Debian Security Advisory DSA 152-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
August 13th, 2002
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Package        : l2tpd
Vulnerability  : missing random seed
Problem-Type   : remote
Debian-specific: no

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
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  Source archives:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1.dsc
      Size/MD5 checksum:      556 ffe4fded4647ac003ffdd4978661ca15
    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1.diff.gz
      Size/MD5 checksum:     2339 b647394faed6dba02687e7709299836a
    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67.orig.tar.gz
      Size/MD5 checksum:   121685 d40065070e34c44389e4c749b61916c6

  Alpha architecture:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1_alpha.deb
      Size/MD5 checksum:    99940 a3caa77d343536f68753ea64aa336a45

  ARM architecture:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1_arm.deb
      Size/MD5 checksum:    90756 603a9b88e98001c1602d464571dce765

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1_i386.deb
      Size/MD5 checksum:    88130 bbd745997296fd61edc9777de121c9a5

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1_ia64.deb
      Size/MD5 checksum:   110726 dc180c2040f8f29f868e5039e09b0879

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1_hppa.deb
      Size/MD5 checksum:    94918 9629d5a679cf336036d485a32fa0b6db

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1_m68k.deb
      Size/MD5 checksum:    84818 c61280d6f968b9052dfc9f9e5c34cbd5

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1_mips.deb
      Size/MD5 checksum:    94608 62cfeab1e06185f58b79c7c8f3b93cce

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1_mipsel.deb
      Size/MD5 checksum:    94944 6d164b24e067355b26b7234434ff21cb

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1_powerpc.deb
      Size/MD5 checksum:    89318 a736a5fc05493393e1b0ade0097f60a0

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1_s390.deb
      Size/MD5 checksum:    87736 6e1d259729d21a92537c38d315f0286f

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/l/l2tpd/l2tpd_0.67-1.1_sparc.deb
      Size/MD5 checksum:    91790 faade7c56590eae84e8b0ef14014a29b


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

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For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

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