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Debian Security Advisory DSA-070-1 securitydebian.org
http://www.debian.org/security/ Robert van der Meulen
August 10, 2001
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Package : netkit-telnet
Problem type : remote exploit
Debian-specific: no

The telnet daemon contained in the netkit-telnet_0.16-4potato1 package in
the 'stable' (potato) distribution of Debian GNU/Linux is vulnerable to an
exploitable overflow in its output handling.
The original bug was found by <scutnb.in-berlin.de>, and announced to
bugtraq on Jul 18 2001. At that time, netkit-telnet versions after 0.14 were
not believed to be vulnerable.
On Aug 10 2001, zen-parse posted an advisory based on the same problem, for
all netkit-telnet versions below 0.17.
More details can be found on http://www.securityfocus.com/archive/1/203000 .
As Debian uses the 'telnetd' user to run in.telnetd, this is not a remote
root compromise on Debian systems; the 'telnetd' user can be compromised.

We strongly advise you update your netkit-telnet packages to the versions
listed below.

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

Debian GNU/Linux 2.2 alias potato
- ---------------------------------

  Potato was released for alpha, arm, i386, m68k, powerpc and sparc.

  Source archives:
    http://security.debian.org/dists/stable/updates/main/source/netkit-telnet_0.16-4potato.2.diff.gz
      MD5 checksum: 7da3f346ec6f75cf9069a60627b5d846
    http://security.debian.org/dists/stable/updates/main/source/netkit-telnet_0.16.orig.tar.gz
      MD5 checksum: d829b432eec6a2ff0d866869445f1303
    http://security.debian.org/dists/stable/updates/main/source/netkit-telnet_0.16-4potato.2.dsc
      MD5 checksum: 197bce85871845b0223b4fa9038c1cb3

  Alpha architecture:
    http://security.debian.org/dists/stable/updates/main/binary-alpha/telnet_0.16-4potato.2_alpha.deb
      MD5 checksum: 8baae434348115c1a261858b851b3771
    http://security.debian.org/dists/stable/updates/main/binary-alpha/telnetd_0.16-4potato.2_alpha.deb
      MD5 checksum: f54812129a40d2c2df3d17817612274b

  ARM architecture:
    http://security.debian.org/dists/stable/updates/main/binary-arm/telnet_0.16-4potato.2_arm.deb
      MD5 checksum: 0e0c673d7b4ec972c7206c8d3d7c33b6
    http://security.debian.org/dists/stable/updates/main/binary-arm/telnetd_0.16-4potato.2_arm.deb
      MD5 checksum: 8c6c832af4b2aa002fe5e7d28a9fe862

  Intel IA-32 architecture:
    http://security.debian.org/dists/stable/updates/main/binary-i386/telnet_0.16-4potato.2_i386.deb
      MD5 checksum: 9bdc63c4b0dee55a5ded30203edfd619
    http://security.debian.org/dists/stable/updates/main/binary-i386/telnetd_0.16-4potato.2_i386.deb
      MD5 checksum: a65483b5f60a14b69ef81e51a596bd84

 Motorola 680x0 architecture:
    http://security.debian.org/dists/stable/updates/main/binary-m68k/telnet_0.16-4potato.2_m68k.deb
      MD5 checksum: 93ddab1a31a37cc9495d0432cb05ff4e
    http://security.debian.org/dists/stable/updates/main/binary-m68k/telnetd_0.16-4potato.2_m68k.deb
      MD5 checksum: 487c5b972e568d7dff4e2ad71349dc57

  PowerPC architecture:
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/telnet_0.16-4potato.2_powerpc.deb
      MD5 checksum: 7e3d66416e88aa069d15d1cef64974b3
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/telnetd_0.16-4potato.2_powerpc.deb
      MD5 checksum: 2738a29f80edeabc9fa7109253364dd0

  Sun Sparc architecture:
    http://security.debian.org/dists/stable/updates/main/binary-sparc/telnet_0.16-4potato.2_sparc.deb
      MD5 checksum: fef54ee3d64113ff1cdb0d9f4437f34e
    http://security.debian.org/dists/stable/updates/main/binary-sparc/telnetd_0.16-4potato.2_sparc.deb
      MD5 checksum: 91469be1ac617b246e459210a11aca8e

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

For not yet released architectures please refer to the appropriate
directory ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .

- --
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apt-get: deb http://security.debian.org/ stable/updates main
dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announcelists.debian.org
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