Articles / Debian: New netkit-telnet p…

Debian: New netkit-telnet packages fix arbitrary code execution

iDEFENSE researchers discovered a buffer overflow in the handling of the LINEMODE suboptions in telnet clients. This can lead to the execution of arbitrary code when connected to a malicious server. Fixed packages are available from security.debian.org .
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Debian Security Advisory DSA 697-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
March 29th, 2005                        http://www.debian.org/security/faq
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Package        : netkit-telnet
Vulnerability  : buffer overflow
Problem-Type   : remote
Debian-specific: no
CVE ID         : CAN-2005-0469

iDEFENSE researchers discovered a buffer overflow in the handling of
the LINEMODE suboptions in telnet clients.  This can lead to the
execution of arbitrary code when connected to a malicious server.

For the stable distribution (woody) this problem has been fixed in
version 0.17-18woody3.

For the unstable distribution (sid) this problem will be fixed soon.

We recommend that you upgrade your telnet 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 3.0 alias woody
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/netkit-telnet_0.17-18woody3.dsc
      Size/MD5 checksum:      602 2fe6640e0719f7aa44a7815a89a12a41
    http://security.debian.org/pool/updates/main/n/netkit-telnet/netkit-telnet_0.17-18woody3.diff.gz
      Size/MD5 checksum:    22327 943fcd9a5048df83ce6d4f00c5b64853
    http://security.debian.org/pool/updates/main/n/netkit-telnet/netkit-telnet_0.17.orig.tar.gz
      Size/MD5 checksum:   133749 d6beabaaf53fe6e382c42ce3faa05a36

  Alpha architecture:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody3_alpha.deb
      Size/MD5 checksum:    84292 0b84a10dfc8714c16dbbb022f3344616
    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody3_alpha.deb
      Size/MD5 checksum:    45876 7a1893a937dd23489c45cc31d0e1605b

  ARM architecture:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody2_arm.deb
      Size/MD5 checksum:    69924 8bb25a534f053a693aa971df0e15d71f
    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody2_arm.deb
      Size/MD5 checksum:    39618 2cfc8d96f00bb739333adf0659caceb6

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody3_i386.deb
      Size/MD5 checksum:    70736 838259bf5d62e438959162e53aad0fa0
    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody3_i386.deb
      Size/MD5 checksum:    38616 b70a384a508e0405e91f3790f0668081

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody3_ia64.deb
      Size/MD5 checksum:   102868 70da46fb55cb87eb86e926ffbd9d0bb2
    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody3_ia64.deb
      Size/MD5 checksum:    52542 8a459f0368d5f861f9bf4ab35ce6a8c3

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody3_hppa.deb
      Size/MD5 checksum:    70048 f14aa30e55f6ea4d40f6c4164d3db8bb
    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody3_hppa.deb
      Size/MD5 checksum:    43568 11ecc34f1825ceecda70fb89265b688e

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody3_m68k.deb
      Size/MD5 checksum:    67226 572135d4d9d8978bc0a1ea6202f7c1be
    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody3_m68k.deb
      Size/MD5 checksum:    37524 1c061c7ee5e3879b88eadda2b21eb463

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody3_mips.deb
      Size/MD5 checksum:    80896 7de7f5ad30e0f95a5661b2cfe44f95ab
    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody3_mips.deb
      Size/MD5 checksum:    42678 a77278475feb6cb0ec3b605a5a904218

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody3_mipsel.deb
      Size/MD5 checksum:    80828 70c559a8b71a8c03350eeccf53f3e25d
    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody3_mipsel.deb
      Size/MD5 checksum:    42670 51cb8ffb5f3c4b525682e78d7ae1481e

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody3_powerpc.deb
      Size/MD5 checksum:    73288 38517e77c45ed6c66fddb4d817b4829a
    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody3_powerpc.deb
      Size/MD5 checksum:    40326 9ca930698e43c7bf55865fca839d57e4

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody3_s390.deb
      Size/MD5 checksum:    73250 e2f4333b7dc6bf55dd3c46ed98734499
    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody3_s390.deb
      Size/MD5 checksum:    41272 7cce38638c1e4a9564369ff5e7e68a69

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnet_0.17-18woody3_sparc.deb
      Size/MD5 checksum:    74240 5a83b9953328c8de75a76682ce30da35
    http://security.debian.org/pool/updates/main/n/netkit-telnet/telnetd_0.17-18woody3_sparc.deb
      Size/MD5 checksum:    45374 167f760979a1eb531461178ed576b82c


  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 ' and http://packages.debian.org/

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