Synopsis :

The remote Fedora Core host is missing a security update.

Description :

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.

See also :

http://www.nessus.org/u?48f911d6

Solution :

Update the affected firefox and / or firefox-debuginfo packages.

Risk factor :

High