-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- Debian Security Advisory DSA 163-1 security@debian.org http://www.debian.org/security/ Martin Schulze September 9th, 2002 http://www.debian.org/security/faq - -------------------------------------------------------------------------- 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 - -------------------------------- 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 - -------------------------------- 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. - --------------------------------------------------------------------------------- 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-announce@lists.debian.org Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (GNU/Linux) iD8DBQE9fNTIW5ql+IAeqTIRArGqAJ0dcf9y6EYdVlTJDe5Nm9M1cO/a8QCeI+6y LFVJxZ4Rtz4AKeJp2KTRCoE= =1Qrb -----END PGP SIGNATURE-----
