Debian: 'most' buffer overflow
Posted by LinuxSecurity.com Team   
Debian Pavel Machek has found a buffer overflow in the `most' pager program.

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Debian Security Advisory DSA 076-1                       security@debian.org 
http://www.debian.org/security/                               Martin Schulze
September 18, 2001
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Package        : most
Vulnerability  : buffer overflow
Problem-Type   : remote exploit
Debian-specific: no

Pavel Machek has found a buffer overflow in the `most' pager program.
The problem is part of most's tab expansion where the program would
write beyond the bounds two array variables when viewing a malicious
file.  This could lead into other data structures being overwritten
which in turn could enable most to execute arbitrary code being able
to compromise the users environment.

This has been fixed in the upstream version 4.9.2 and an updated
version of 4.9.0 for Debian GNU/Linux 2.2.

We recommend that you upgrade your most package immediately.

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/most_4.9.0-2.1.diff.gz
      MD5 checksum: d5fc74c9f9aff4949bd620cec9e39888
     http://security.debian.org/dists/stable/updates/main/source/most_4.9.0-2.1.dsc
      MD5 checksum: c441024116f3674c9c04cf30b979973d

  Alpha architecture:

     http://security.debian.org/dists/stable/updates/main/binary-alpha/most_4.9.0-2.1_alpha.deb
      MD5 checksum: aa349cd180b55d788d9b3374dcd53801

  ARM architecture:

     http://security.debian.org/dists/stable/updates/main/binary-arm/most_4.9.0-2.1_arm.deb
      MD5 checksum: 4c50cdbdf76985a53e5ca911149e3d17

  Intel ia32 architecture:

     http://security.debian.org/dists/stable/updates/main/binary-i386/most_4.9.0-2.1_i386.deb
      MD5 checksum: b998b05837b20e78e143be0ffdc3e44c

  Motorola 680x0 architecture:

     http://security.debian.org/dists/stable/updates/main/binary-m68k/most_4.9.0-2.1_m68k.deb
      MD5 checksum: 751ad9e35b32de7b4c6ef9b514a92ff5

  PowerPC architecture:

     http://security.debian.org/dists/stable/updates/main/binary-powerpc/most_4.9.0-2.1_powerpc.deb
      MD5 checksum: 683430dc0f49cab9cfbd5564e0c29858

  Sun Sparc architecture:

     http://security.debian.org/dists/stable/updates/main/binary-sparc/most_4.9.0-2.1_sparc.deb
      MD5 checksum: db94cdb0fb2329e03c0e9cae67669208


  These files will 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 ' and  http://packages.debian.org/