Mozilla Firefox 1.0.7 Update Available (September 21, 2005) All users should upgrade to Firefox 1.0.7, a security update to Firefox 1.0. Users can download Firefox from the download page.
Security Advisory (September 21, 2005) The Mozilla Foundation is aware of the Linux.RST.b virus that infected Linux Korean contributed versions of Mozilla Suite 1.7.6 and Thunderbird 1.0.2, as reported by Kaspersky Lab. No versions of Mozilla Firefox were infected. Infected files have been removed from the Mozilla ftp mirror network as of September 17.
Mozilla recommends to our Korean users who have downloaded affected products to run an AntiVirus product on their machine to scan for the Linux.RST.b virus and delete infected files.
Fixed in Firefox 1.0.7
MFSA 2005-59 Command-line handling on Linux allows shell execution
MFSA 2005-58 Firefox 1.0.7 / Mozilla Suite 1.7.12 Vulnerability Fixes
MFSA 2005-57 IDN heap overrun using soft-hyphens
You can download the update
here.