Debian: 'w3m' buffer overflow

    Date18 Oct 2001
    CategoryDebian
    3442
    Posted ByLinuxSecurity Advisories
    In SNS Advisory No. 32 a buffer overflow vulnerability has been reported in the routine which parses MIME headers that are returned from web servers. A malicious web server administrator could exploit this and let the client web browser execute arbitrary code.
    
    --------------------------------------------------------------------------
    Debian Security Advisory DSA 081-1                     This email address is being protected from spambots. You need JavaScript enabled to view it. 
    http://www.debian.org/security/                             Martin Schulze
    October 18th, 2001
    --------------------------------------------------------------------------
    
    Packages       : w3m, w3m-ssl
    Vulnerability  : Buffer Overflow
    Problem-Type   : remote code execution
    Debian-specific: no
    
    In SNS Advisory No. 32 a buffer overflow vulnerability has been
    reported in the routine which parses MIME headers that are returned
    from web servers.  A malicious web server administrator could exploit
    this and let the client web browser execute arbitrary code.
    
    W3m handles MIME headers included in the request/response message of
    HTTP communication like any other we bbrowser.  A buffer overflow will
    be occur when w3m receives a MIME encoded header with base64 format.
    
    This problem has been fixed by the maintainer in version
    0.1.10+0.1.11pre+kokb23-4 of w3m and w3m-ssl (for the SSL-enabled
    version), both for Debian GNU/Linux 2.2.
    
    We recommend that you upgrade your w3m 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:
    
         http://security.debian.org/dists/stable/updates/main/source/w3m_0.1.10+0.1.11pre+kokb23-4.diff.gz
          MD5 checksum: 94e868f1fa21be50a56d40007a21acc6
         http://security.debian.org/dists/stable/updates/main/source/w3m_0.1.10+0.1.11pre+kokb23.orig.tar.gz
          MD5 checksum: 8f4503bbc966761d806d770fe1632450
         http://security.debian.org/dists/stable/updates/main/source/w3m_0.1.10+0.1.11pre+kokb23-4.dsc
          MD5 checksum: 46bd8e55a198036391b57a847486c303
         http://security.debian.org/dists/stable/updates/main/source/w3m-ssl_0.1.10+0.1.11pre+kokb23-4.dsc
          MD5 checksum: 6bc881ce595e5f723bcbd61dc6520523
         http://security.debian.org/dists/stable/updates/main/source/w3m-ssl_0.1.10+0.1.11pre+kokb23-4.tar.gz
          MD5 checksum: c857fd94c8e76f451ddfc3e59ce2d678
    
      Alpha architecture:
    
         http://security.debian.org/dists/stable/updates/main/binary-alpha/w3m_0.1.10+0.1.11pre+kokb23-4_alpha.deb
          MD5 checksum: 2da17834f750361ef11f956aea86bcdc
         http://security.debian.org/dists/stable/updates/main/binary-alpha/w3m-ssl_0.1.10+0.1.11pre+kokb23-4_alpha.deb
          MD5 checksum: b5b17b0ab958e1ce5ae82998c8c52a21
    
      ARM architecture:
    
         http://security.debian.org/dists/stable/updates/main/binary-arm/w3m_0.1.10+0.1.11pre+kokb23-4_arm.deb
          MD5 checksum: da67534b0182355a57618231addd92ae
         http://security.debian.org/dists/stable/updates/main/binary-arm/w3m-ssl_0.1.10+0.1.11pre+kokb23-4_arm.deb
          MD5 checksum: cd5a22df1fbca97ec3ce9d7a6760ab41
    
      Intel ia32 architecture:
    
         http://security.debian.org/dists/stable/updates/main/binary-i386/w3m_0.1.10+0.1.11pre+kokb23-4_i386.deb
          MD5 checksum: 7b811019f0f246338cbf438952358b54
         http://security.debian.org/dists/stable/updates/main/binary-i386/w3m-ssl_0.1.10+0.1.11pre+kokb23-4_i386.deb
          MD5 checksum: 07c9aa2738a22e4984c290657c71b79d
    
      PowerPC architecture:
    
         http://security.debian.org/dists/stable/updates/main/binary-powerpc/w3m_0.1.10+0.1.11pre+kokb23-4_powerpc.deb
          MD5 checksum: 64211980c4101e493aa2c0f906c6be9c
    
      Sun Sparc architecture:
    
         http://security.debian.org/dists/stable/updates/main/binary-sparc/w3m_0.1.10+0.1.11pre+kokb23-4_sparc.deb
          MD5 checksum: 4016ba11b084cd94e6023b47e7270f74
         http://security.debian.org/dists/stable/updates/main/binary-sparc/w3m-ssl_0.1.10+0.1.11pre+kokb23-4_sparc.deb
          MD5 checksum: 4a50edab63b9fe3c6c40638902018ebb
    
    
      w3m-ssl is not available for stable/powerpc and neither w3m nor
      w3m-ssl are available for m68k.
    
      These files will be moved into the stable distribution on its next
      revision.
    
    ---------------------------------------------------------------------------------
    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: This email address is being protected from spambots. You need JavaScript enabled to view it.
    Package info: `apt-cache show ' and  http://packages.debian.org/
    
    
    
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