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Debian Security Advisory DSA 112-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
February 16th, 2002  
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Package        : hanterm
Vulnerability  : buffer overflow
Problem-Type   : local
Debian-specific: no

A set of buffer overflow problems have been found in hanterm, a Hangul
terminal for X11 derived from xterm, that will read and display Korean
characters in its terminal window.  The font handling code in hanterm
uses hard limited string variables but didn't check for boundaries.

This problem can be exploited by a malicious user to gain access to
the utmp group which is able to write the wtmp and utmp files.  These
files record login and logout activities.

This problem has been fixed in version 3.3.1p17-5.2 for the stable
Debian distribution.  A fixed package for the current testing/unstable
distribution is not yet available but will have a version number
higher than 3.3.1p18-6.1.

We recommend that you upgrade your hanterm packages immediately if you
have them installed.  Known exploits are already available.

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 2.2 alias potato
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  Source archives:

    
http://security.debian.org/dists/stable/updates/main/source/hanterm_3.3.1p17-5.2.diff.gz
      MD5 checksum: 9ab0729c5176a86a20c399e04f28850d
    
http://security.debian.org/dists/stable/updates/main/source/hanterm_3.3.1p17-5.2.dsc
      MD5 checksum: 0c56000bc115ec507d6918de91a93345
    
http://security.debian.org/dists/stable/updates/main/source/hanterm_3.3.1p17.orig.tar.gz
      MD5 checksum: ff352701cdd8f3745194cc7ae9020e79

  Alpha architecture:

    
http://security.debian.org/dists/stable/updates/main/binary-alpha/hanterm_3.3.1p17-5.2_alpha.deb
      MD5 checksum: 13e21715a9e194ce5696f4acdb833d97

  ARM architecture:

    
http://security.debian.org/dists/stable/updates/main/binary-arm/hanterm_3.3.1p17-5.2_arm.deb
      MD5 checksum: 101bc127aa0759e60d0efaf7731f8d04

  Intel ia32 architecture:

    
http://security.debian.org/dists/stable/updates/main/binary-i386/hanterm_3.3.1p17-5.2_i386.deb
      MD5 checksum: 26f7bfa946ded30fdb9a1bf6a22558d7

  Motorola 680x0 architecture:

    
http://security.debian.org/dists/stable/updates/main/binary-m68k/hanterm_3.3.1p17-5.2_m68k.deb
      MD5 checksum: 3f33ceb331deceb76e42244272b8f38b

  PowerPC architecture:

    
http://security.debian.org/dists/stable/updates/main/binary-powerpc/hanterm_3.3.1p17-5.2_powerpc.deb
      MD5 checksum: 3d1e41b5572f633ff3eac6077461f830

  Sun Sparc architecture:

    
http://security.debian.org/dists/stable/updates/main/binary-sparc/hanterm_3.3.1p17-5.2_sparc.deb
      MD5 checksum: 20cc308e2a90333957c81f8cbcfcd0dc


  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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