Linux Security
    Linux Security
    Linux Security

    Debian: 'xtell' Multiple vulnerabilities

    Date 11 Mar 2002
    Posted By LinuxSecurity Advisories
    Several security related problems have been found in the xtellpackage, a simple messaging client and server.
    Debian Security Advisory DSA 121-1                     This email address is being protected from spambots. You need JavaScript enabled to view it.                             Martin Schulze
    March 11th, 2002
    Package        : xtell
    Vulnerability  : buffer overflow, symlink problem, ".." directory traversal
    Problem-Type   : remote
    Debian-specific: no
    Several security related problems have been found in the xtell
    package, a simple messaging client and server.  In detail, these
    problems contain several buffer overflows, a problem in connection
    with symbolic links, unauthorized directory traversal when the path
    contains "..".  These problems could lead into an attacker being able
    to execute arbitrary code on the server machine.  The server runs with
    nobody privileges by default, so this would be the account to be
    They have been corrected by backporting changes from a newer upstream
    version by the Debian maintainer for xtell.  These problems are fixed
    in version 1.91.1 in the stable distribution of Debian and in version
    2.7 for the testing and unstable distribution of Debian.
    We recommend that you upgrade your xtell packages 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:
          MD5 checksum: a7dbe82b7a451bc5153f8c42efe5bef5
          MD5 checksum: e6a2b22c793e1dba11b1ea0f10a07029
      Alpha architecture:
          MD5 checksum: 0901b8b491b27be14e7679ac04bc2d2a
      ARM architecture:
          MD5 checksum: be3416176f8b445d26b99bb42b387606
      Intel ia32 architecture:
          MD5 checksum: 15dba43eec2b9b24a04523b27e621bbd
      Motorola 680x0 architecture:
          MD5 checksum: ac0c36244ed3d72cae452fc9553036ca
      PowerPC architecture:
          MD5 checksum: 4a76e260f54eaae84688e28a18b98add
      Sun Sparc architecture:
          MD5 checksum: d250b1652599b54d2dbb52ce216a3afa
      These files will probably be moved into the stable distribution on
      its next revision.
    For apt-get: deb stable/updates main
    For dpkg-ftp: dists/stable/updates/main
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    Package info: `apt-cache show ' and

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