Linux Security
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    Linux Security

    Debian: 'mhonarc' XSS Vulnerability

    Date 09 Sep 2002
    Posted By LinuxSecurity Advisories
    When processingmaliciously crafted mails of type text/html, mhonarc, does notdeactivate all scripting parts properly.
    Debian Security Advisory DSA 163-1                     This email address is being protected from spambots. You need JavaScript enabled to view it. Martin Schulze
    September 9th, 2002            
    Package        : mhonarc
    Vulnerability  : cross site scripting
    Problem-Type   : remote
    Debian-specific: no
    CVE Id         : CAN-2002-0738
    BugTraq ID     : 4546
    Upstream URL   :
    Jason Molenda and Hiromitsu Takagi found ways to exploit cross site
    scripting bugs in mhonarc, a mail to HTML converter.  When processing
    maliciously crafted mails of type text/html, mhonarc, does not
    deactivate all scripting parts properly.  This is fixed in upstream
    version 2.5.3.
    If you are worried about security, it is recommended that you disable
    support of text/html messages in your mail archives.  There is no
    guarantee that the library is robust enough to eliminate
    all possible exploits that can occur with HTML data.
    To exclude HTML data, you can use the MIMEEXCS resource.  For example:
    The use of "text/x-html" is probably not used any more, but is good to
    include it, just-in-case.
    If you are concerend that this could block out the entire contents of
    some messages, then you could do the following instead:
    text/html; m2h_text_plain::filter;
        text/x-html; m2h_text_plain::filter;
    This treats the HTML as text/plain.
    The above problems have been fixed in version 2.5.2-1.1 for the
    current stable stable distribution (woody), in version 2.4.4-1.1 for
    the old stable distribution (potato) and in version 2.5.11-1 for the
    unstable distribution (sid).
    We recommend that you upgrade your mhonarc packages.
    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:
    Size/MD5 checksum:      538 53ba6d2d674e257704316f2d79c78f2b
    Size/MD5 checksum:     5951 09a4eb1ab17adda2063eb6cc8bbccf67
    Size/MD5 checksum:   451692 17bfacfc31d185f472695b0fac5d23b9
      Architecture independent components:
    Size/MD5 checksum:   453130 04d3a566858fab841acd7ece5d8ae127
    Debian GNU/Linux 3.0 alias woody
      Source archives:
    Size/MD5 checksum:      560 eb4744e14f378e2c64b5dfd10b675808
    Size/MD5 checksum:     4070 c83dc0b1e42beac644a56632b54d26e6
    Size/MD5 checksum:   600942 5151b61a4dc2bd18214e9a8d47ec41df
      Architecture independent components:
    Size/MD5 checksum:   572816 6696856ba903ea8a882cfcc48b29dec9
      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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