Mozilla fixes 'extremely critical' Firefox bugs

Firefox 1.0.4 was posted to the Mozilla.org Web site yesterday

By Robert McMillan

May 12, 2005 12:00 PM ET

IDG News Service - The Mozilla Foundation has patched two "extremely critical" security holes in its Firefox browser by releasing an updated version of the browser. Firefox 1.0.4 was posted to the Mozilla.org Web site late yesterday.
When used in tandem, the two bugs could be used by an attacker to take control of a Firefox user's system by exploiting the way Firefox handles software installations from certain trusted Web sites. Firefox automatically allows software to be installed from update.mozilla.org and addons.mozilla.org, but users who want to add software from other Web sites can add to this trusted list.
Earlier this week, The Mozilla Foundation made changes to Mozilla.org, which protected most users. But Web surfers who had added other Web sites to their trusted list were still vulnerable, said Chris Hofmann director of engineering with The Mozilla Foundation.
Danish security firm Secunia rated the exploit as "extremely critical," marking the first time a flaw in the open-source browser had received Secunia's most serious security rating (see story).
Firefox has gained market share against Microsoft Corp.'s Internet Explorer over the past year, in part because it has been considered less vulnerable to attacks. Since the release of Firefox 1.0 last November, however, a number of vulnerabilities have been discovered in the browser.
The Mozilla Foundation reports nearly 54 million Firefox downloads since the 1.0 release. Firefox has 6.8% of the browser market, according to WebSideStory Inc. But Internet Explorer is still used by nearly 89% of Web surfers, according to the research firm.
The 1.0.4 update also fixes two other minor security bugs as well as the way Firefox handles dynamic HTML (DHTML), said Hofmann. The DHTML bug caused "uncaught exception" errors to pop up on some Web pages in the 1.0.3 version of the browser.
More information on the new Firefox release can be found at http://www.mozilla.org/products/firefox/releases/1.0.4.html.

Reprinted with permission from

IDG.net
Story copyright 2009 International Data Group. All rights reserved.

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