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Debian Security Advisory DSA 163-1 securityat_private
http://www.debian.org/security/ Martin Schulze
September 9th, 2002 http://www.debian.org/security/faq
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Package : mhonarc
Vulnerability : cross site scripting
Problem-Type : remote
Debian-specific: no
CVE Id : CAN-2002-0738
BugTraq ID : 4546
Upstream URL : http://online.securityfocus.com/archive/1/268455
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 mhtxthtml.pl 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:
<MIMEExcs>
text/html
text/x-html
</MIMEExcs>
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:
<MIMEFilters>
text/html; m2h_text_plain::filter; mhtxtplain.pl
text/x-html; m2h_text_plain::filter; mhtxtplain.pl
</MIMEFilters>
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
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Source archives:
http://security.debian.org/pool/updates/main/m/mhonarc/mhonarc_2.4.4-1.1.dsc
Size/MD5 checksum: 538 53ba6d2d674e257704316f2d79c78f2b
http://security.debian.org/pool/updates/main/m/mhonarc/mhonarc_2.4.4-1.1.diff.gz
Size/MD5 checksum: 5951 09a4eb1ab17adda2063eb6cc8bbccf67
http://security.debian.org/pool/updates/main/m/mhonarc/mhonarc_2.4.4.orig.tar.gz
Size/MD5 checksum: 451692 17bfacfc31d185f472695b0fac5d23b9
Architecture independent components:
http://security.debian.org/pool/updates/main/m/mhonarc/mhonarc_2.4.4-1.1_all.deb
Size/MD5 checksum: 453130 04d3a566858fab841acd7ece5d8ae127
Debian GNU/Linux 3.0 alias woody
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Source archives:
http://security.debian.org/pool/updates/main/m/mhonarc/mhonarc_2.5.2-1.1.dsc
Size/MD5 checksum: 560 eb4744e14f378e2c64b5dfd10b675808
http://security.debian.org/pool/updates/main/m/mhonarc/mhonarc_2.5.2-1.1.diff.gz
Size/MD5 checksum: 4070 c83dc0b1e42beac644a56632b54d26e6
http://security.debian.org/pool/updates/main/m/mhonarc/mhonarc_2.5.2.orig.tar.gz
Size/MD5 checksum: 600942 5151b61a4dc2bd18214e9a8d47ec41df
Architecture independent components:
http://security.debian.org/pool/updates/main/m/mhonarc/mhonarc_2.5.2-1.1_all.deb
Size/MD5 checksum: 572816 6696856ba903ea8a882cfcc48b29dec9
These files will probably 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-announceat_private
Package info: `apt-cache show <pkg>' and http://packages.debian.org/>
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: Mon Sep 09 2002 - 13:13:01 PDT