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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

------------------------------------



  Source archives:



    most_4.9.0-2.1.diff.gz
      MD5 checksum: d5fc74c9f9aff4949bd620cec9e39888

    most_4.9.0-2.1.dsc
      MD5 checksum: c441024116f3674c9c04cf30b979973d



  Alpha architecture:



    most_4.9.0-2.1_alpha.deb
      MD5 checksum: aa349cd180b55d788d9b3374dcd53801



  ARM architecture:



    most_4.9.0-2.1_arm.deb
      MD5 checksum: 4c50cdbdf76985a53e5ca911149e3d17



  Intel ia32 architecture:



    most_4.9.0-2.1_i386.deb
      MD5 checksum: b998b05837b20e78e143be0ffdc3e44c



  Motorola 680x0 architecture:



    most_4.9.0-2.1_m68k.deb
      MD5 checksum: 751ad9e35b32de7b4c6ef9b514a92ff5



  PowerPC architecture:



    most_4.9.0-2.1_powerpc.deb
      MD5 checksum: 683430dc0f49cab9cfbd5564e0c29858



  Sun Sparc architecture:



    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-securitydists/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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