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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                   ESB-2005.0996 -- [UNIX/Linux][Debian]
            New dropbear packages fix arbitrary code execution
                             20 December 2005

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           dropbear
Publisher:         Debian
Operating System:  Debian GNU/Linux 3.1
                   UNIX variants (UNIX, Linux, OSX)
Impact:            Root Compromise
Access:            Remote/Unauthenticated
CVE Names:         CVE-2005-4178

Original Bulletin: http://www.debian.org/security/2005/dsa-923

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Debian Security Advisory DSA 923-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
December 19th, 2005                     http://www.debian.org/security/faq
- - --------------------------------------------------------------------------

Package        : dropbear
Vulnerability  : buffer overflow
Problem type   : local (remote)
Debian-specific: no
CVE ID         : CVE-2005-4178

A buffer overflow has been discovered in dropbear, a lightweight SSH2
server and client, that may allow authenticated users to execute
arbitrary code as the server user (usually root).

The old stable distribution (woody) does not contain dropbear packages.

For the stable distribution (sarge) this problem has been fixed in
version 0.45-2sarge0.

For the unstable distribution (sid) this problem has been fixed in
version 0.47-1.

We recommend that you upgrade your dropbear package.


Upgrade Instructions
- - --------------------

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 3.1 alias sarge
- - --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0.dsc
      Size/MD5 checksum:      562 771c96890c39a12c47120ddd910d006e
    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0.diff.gz
      Size/MD5 checksum:     4319 c968be5d18aa754d7ee8811f75ecc852
    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45.orig.tar.gz
      Size/MD5 checksum:  1455970 29babade35e1d8a322e4726886473a84

  Alpha architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_alpha.deb
      Size/MD5 checksum:   281480 5629ae5d6fd265b3d102564c8a4d31cf

  AMD64 architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_amd64.deb
      Size/MD5 checksum:   231480 2aa8ed3a949b983bd638568d47bcc10c

  ARM architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_arm.deb
      Size/MD5 checksum:   200804 85c55cf59293bef6ea547240106288f6

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_i386.deb
      Size/MD5 checksum:   202040 57744bf60afc9a2a513e55942f99e049

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_ia64.deb
      Size/MD5 checksum:   314292 15cfb647be2679801b1a0ac34bd1b19b

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_hppa.deb
      Size/MD5 checksum:   231472 3110c908e587d7a8a0b93b520d240e06

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_m68k.deb
      Size/MD5 checksum:   181280 0cdbf4dee816ba3d296cccc8ba5bcb43

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_mips.deb
      Size/MD5 checksum:   244772 08ca3d67421ee4c71abc49426b79229b

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_mipsel.deb
      Size/MD5 checksum:   245768 50abc231c3074055a4dcb552425062de

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_powerpc.deb
      Size/MD5 checksum:   225898 4289b9460a9378969b4fdb120877dacd

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_s390.deb
      Size/MD5 checksum:   230878 403a282803b66481a0c34fc1be4bdda2

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/d/dropbear/dropbear_0.45-2sarge0_sparc.deb
      Size/MD5 checksum:   200704 22879b1b90f75ac8bfb48c489eccbf3b


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

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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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===========================================================================
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The University of Queensland
Brisbane
Qld 4072

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===========================================================================

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