[FEDORA-2007-554] Fedora 5: firefox

Updated firefox packages that fix several security bugs are
now available for Fedora Core 5.

This update has been rated as having critical security
impact by the Fedora Security Response Team.

Mozilla Firefox is an open source Web browser.

Several flaws were found in the way Firefox processed
certain malformed JavaScript code. A web page containing
malicious JavaScript code could cause Firefox to crash or
potentially execute arbitrary code as the user running
Firefox. (CVE-2007-2867, CVE-2007-2868)

A flaw was found in the way Firefox handled certain FTP PASV
commands. A malicious FTP server could use this flaw to
perform a rudimentary port-scan of machines behind a user's
firewall. (CVE-2007-1562)

Several denial of service flaws were found in the way
Firefox handled certain form and cookie data. A malicious
web site that is able to set arbitrary form and cookie data
could prevent Firefox from functioning properly.
(CVE-2007-1362, CVE-2007-2869)

A flaw was found in the way Firefox handled the
addEventListener JavaScript method. A malicious web site
could use this method to access or modify sensitive data
from another web site. (CVE-2007-2870)

A flaw was found in the way Firefox displayed certain web
content. A malicious web page could generate content that
would overlay user interface elements such as the hostname
and security indicators, tricking users into thinking they
are visiting a different site. (CVE-2007-2871)

Users of Firefox are advised to upgrade to these erratum
packages, which contain Firefox version 1.5.0.12 that
corrects these issues.