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ESB-2006.0904 -- [Linux][Debian] -- new l2tpns packages fix buffer overflow

Date: 12 December 2006

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

                     ESB-2006.0904 -- [Linux][Debian]
                  new l2tpns packages fix buffer overflow
                             12 December 2006

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

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

Product:              l2tpns
Publisher:            Debian
Operating System:     Debian GNU/Linux 3.1
                      Linux variants
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2006-5873

Original Bulletin:    http://www.debian.org/security/2006/dsa-1230

Comment: This advisory references vulnerabilities in products which run on
         platforms other than Debian. It is recommended that administrators
         running l2tpns check for an updated version of the software for
         their operating system.

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- - ------------------------------------------------------------------------
Debian Security Advisory DSA-1230-1                  security@debian.org
http://www.debian.org/security/                               Steve Kemp
December 08, 2006
- - ------------------------------------------------------------------------

Package        : l2tpns (2.0.14-1sarge1)
Vulnerability  : buffer overflow
Problem type   : remote
Debian-specific: no
CVE Id(s)      : CVE-2006-5873
Debian Bug     : 401742


Rhys Kidd discovered a vulnerability in l2tpns, a layer 2 tunnelling
protocol network server, which could be triggered by a remote user to
execute arbitary code.

For the stable distribution (sarge), this problem has been fixed in 
version 2.0.14-1sarge1.

For the unstable distribution (sid) this problem has been fixed in
version 2.1.21-1

We recommend that you upgrade your l2tpns 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 3.1 (stable)
- - -------------------

Stable updates are available for alpha, amd64, arm, hppa, i386, ia64, m68k, mips, mipsel, powerpc, s390 and sparc.

Source archives:

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14.orig.tar.gz
    Size/MD5 checksum:   149672 462bca675b5e27f40f5e5f92918911cb
  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1.diff.gz
    Size/MD5 checksum:     2760 21dd07043e996a6deb282ad9318ff523
  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1.dsc
    Size/MD5 checksum:      585 16faad913601881770b688f2fc8e8357

alpha architecture (DEC Alpha)

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_alpha.deb
    Size/MD5 checksum:   195906 4d8481e9bf411cd71b3439fba8c65f4d

amd64 architecture (AMD x86_64 (AMD64))

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_amd64.deb
    Size/MD5 checksum:   152440 164d2205b4cd8fc99bc4763fb7ac9b38

arm architecture (ARM)

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_arm.deb
    Size/MD5 checksum:   151706 317794e1cbd89bf03a5276a5e0e6e946

hppa architecture (HP PA RISC)

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_hppa.deb
    Size/MD5 checksum:   169062 80e4b651500315e6cfeae09cbd990cca

i386 architecture (Intel ia32)

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_i386.deb
    Size/MD5 checksum:   144584 4a447fcc5dae3781f84f21bc8a262937

ia64 architecture (Intel ia64)

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_ia64.deb
    Size/MD5 checksum:   227898 e14fc8e036271566d4a9178e10650ad3

m68k architecture (Motorola Mc680x0)

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_m68k.deb
    Size/MD5 checksum:   128076 e30c757e00a9914890caeab4da5e364d

mips architecture (MIPS (Big Endian))

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_mips.deb
    Size/MD5 checksum:   165256 c5eadfb746ff587e557241fcea756011

mipsel architecture (MIPS (Little Endian))

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_mipsel.deb
    Size/MD5 checksum:   168406 b11641d83e799878de35512edb09dbfa

powerpc architecture (PowerPC)

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_powerpc.deb
    Size/MD5 checksum:   168706 9b4038dbfaa5fe14ac7df25857cc0e7f

s390 architecture (IBM S/390)

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_s390.deb
    Size/MD5 checksum:   155020 d4a196ecf8b13ae8d0830e45571cc29d

sparc architecture (Sun SPARC/UltraSPARC)

  http://security.debian.org/pool/updates/main/l/l2tpns/l2tpns_2.0.14-1sarge1_sparc.deb
    Size/MD5 checksum:   160188 ab36083d96a6d5ca028d93032eccdec0


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

- - ---------------------------------------------------------------------------------
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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        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================

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