I uploaded a firefox package that should address all currently disclosed issues. Please provide feedback if you encounter any regressions. Otherwise, this package will be pushed to the debian security mirrors.
Here the hunk from the changelog that gives you a brief overview of issues addressed with this upload:
CODE:
mozilla-firefox (1.0.4-2sarge4) stable-security; urgency=critical
+ MFSA-2005-57: IDN heap overrun
Summary: Tom Ferris reported a Firefox crash when processing a domain
name consisting solely of soft-hyphen characters.
Closes: 327452
CVE-Ids: CAN-2005-2871
Bugzilla: 307259
Issues addressed:
+ CAN-2005-2871 - IDN heap overrun
+ MFSA-2005-58: Accumulated vendor advisory for multiple vulnerabilities
Summary: Fixes for multiple vulnerabilities with an overall severity
of ”critical” have been released in Mozilla Firefox 1.0.7 and
the Mozilla Suite 1.7.12
Closes: -
CVE-Ids: CAN-2005-2701 CAN-2005-2702 CAN-2005-2703 CAN-2005-2704
CAN-2005-2705 CAN-2005-2706 CAN-2005-2707
Bugzilla: 300936 296134 297078 302263 299518 303213 304754 306261
306804 291178 300853 301180 302100
Issues addressed:
+ CAN-2005-2701 - Heap overrun in XBM image processing
+ CAN-2005-2702 - Crash on ”zero-width non-joiner” sequence
+ CAN-2005-2703 - XMLHttpRequest header spoofing
+ CAN-2005-2704 - Object spoofing using XBL <implements>
+ CAN-2005-2705 - JavaScript integer overflow
+ CAN-2005-2706 - Privilege escalation using about: scheme
+ CAN-2005-2707 - Chrome window spoofing
+ Regression fixes
+ MFSA-2005-59: Debian Firefox is not affected by this.
Edit: You can get this package from my security preview archives. See http://www.asoftsite.org/apt-archives.html for the lines you need to apt-get this package.