Package: mozilla-firefox
Version: 1.0+dfsg.1-5
Severity: grave
Justification: user security hole


"Homograph attack" allows an attacker to create a link, with SSL 'lock' and
everything which is indistinguishable from a trusted site.  Advisory is here:
   http://www.shmoo.com/idn/homograph.txt
Example page showing this attack for paypal.com is at:
   http://www.shmoo.com/idn/
and example for amazon.com is at:
  http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3866526512
This last is a real shame.

There is a simple workaround for mozilla and firefox:
  > You can disable IDN support in mozilla products by setting
  > 'network.enableIDN' to false.

This should be done ASAP for debian packages to provide a 'secure by default'
experience.  The advisory indicates that mozilla is "working on finding a
good long-term solution"; we should re-enable IDN only when that 'real'
solution appears.  This fix may upset international users, but they can
locally re-enable IDN once they are advised of the vulnerability.  For
english-speaking users disabling IDN is obviously the right thing to do.
  --scott

-- System Information:
Debian Release: 3.1
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.8-2-686-smp
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages mozilla-firefox depends on:
ii  debianutils              2.11.2          Miscellaneous utilities specific t
ii  fontconfig               2.2.3-4         generic font configuration library
ii  libatk1.0-0              1.8.0-4         The ATK accessibility toolkit
ii  libc6                    2.3.2.ds1-20    GNU C Library: Shared libraries an
ii  libfontconfig1           2.2.3-4         generic font configuration library
ii  libfreetype6             2.1.7-2.3       FreeType 2 font engine, shared lib
ii  libgcc1                  1:3.4.3-9       GCC support library
ii  libglib2.0-0             2.6.2-1         The GLib library of C routines
ii  libgtk2.0-0              2.6.2-2         The GTK+ graphical user interface 
ii  libidl0                  0.8.3-1         library for parsing CORBA IDL file
ii  libjpeg62                6b-9            The Independent JPEG Group's JPEG 
ii  libkrb53                 1.3.6-1         MIT Kerberos runtime libraries
ii  libpango1.0-0            1.8.0-3         Layout and rendering of internatio
ii  libpng12-0               1.2.8rel-1      PNG library - runtime
ii  libstdc++5               1:3.3.5-8       The GNU Standard C++ Library v3
ii  libx11-6                 4.3.0.dfsg.1-10 X Window System protocol client li
ii  libxext6                 4.3.0.dfsg.1-10 X Window System miscellaneous exte
ii  libxft2                  2.1.2-6         FreeType-based font drawing librar
ii  libxp6                   4.3.0.dfsg.1-10 X Window System printing extension
ii  libxt6                   4.3.0.dfsg.1-10 X Toolkit Intrinsics
ii  psmisc                   21.5-1          Utilities that use the proc filesy
ii  xlibs                    4.3.0.dfsg.1-10 X Keyboard Extension (XKB) configu
ii  zlib1g                   1:1.2.2-4       compression library - runtime

-- no debconf information


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]

Reply via email to