Mozilla Fixes Critical Firefox Flaws
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Updated browser that patches the problems is now available for download.
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Testing times Mozilla released an alpha version of Firefox 3, targeted at developers, on Friday in a bid to make sure the foundations of the next version of its browser are solid well before putting on all the bells and whistles.â¦
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Mozilla Corp. updated the preview of Firefox 3.0 to alpha 8 Thursday, unveiling for the first time to users several security features it&#39;s talked up for months.
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Mozilla will push another version of Firefox to users as early as next week to fix five bugs it introduced in last Wednesday's security update.
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Just days after the Mozilla Foundation released the final version of its standalone Firefox browser, a security firm Thursday said that earlier editions were buggy and should be replaced.
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(InfoWorld) - MozillaÂ has released an update to its Firefox browser, fixing a number of security flaws in the product. The Firefox 2.0.0.2 release includes a fix for a bug disclosed by security researcher Michal Zalewsky last week. That flaw can be exploited by attackers to manipulate cookie information in the Firefox browser, making it probably the most important fix in the update, according to Window Snyder, Mozilla's head of security strategy. "The potential to compromise a user's account is almost as serious as compromising their machine," she said Friday via instant message. "Since the details of how to exploit the vulnerability are publicly available, the risk to users is increased." The updates also include a fix for a previously undisclosed memory corruption flaw in the browser that could be exploited to run unauthorized software on a Firefox user's computer. This flaw could also affect Thunderbird users who have configured their mail client to run JavaScript automatically, something that Mozilla does not recommend. Thunderbird is Mozilla's free e-mail client. The patches were released on Friday afternoon and should soon be delivered via Firefox's automatic software update mechanism, Snyder said. Mozilla has patched a total of seven Firefox bugs and is also addressing two bugs in Thunderbird. The latest browser release also includes enhancements to make it run better with Windows Vista as well as support for the Afrikaans, Belarusian, Georgian, and Kurdish languages.
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A security researcher has found a security bug that could be attacked in Internet Explorer. Mozilla Corp. said it plans to patch the problem in its next Firefox software update.
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Recently patched version of Mozilla's Firefox browser fixed only 50 percent of the problems, researcher says.
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TechWeb - A new proof-of-concept code is circulating for a Firefox vulnerability that was fixed in Mozilla's security update that was released last week.
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Mozilla officially launches its infamous upstart, the Firefox browser.
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10.3.7 fixes bugs, fills security holes
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Ten security flaws found in Firefox browser, Thunderbird e-mail client.
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Vista stability also improved by critical browser update Firefox users need to update their browser software following the release of updates designed to fix multiple security vulnerabilities.â¦
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(InfoWorld) - Mozilla late yesterday patched Firefox to fix nine bugs, including the controversial critical vulnerability that involved both the open source Web browser and Microsoft's Internet Explorer. Firefox 2.0.0.5, which can be downloaded in versions for Windows, Mac OS X, and Linux in 42 localized editions, fixes the "firefoxurl://" vulnerability that can be exploited only on systems where Firefox is installed but IE is the primary browser. For the past week, researchers have quarreled over whether Mozilla or Microsoft was responsible for the flaw and which company should patch its software. In the security advisory, one of eight issued yesterday that outline the nine bugs, Mozilla again refrained from expressly putting the onus on Microsoft. But as before, it came close. "Other Windows applications can be called in this way and also manipulated to execute malicious code," read the advisory. "This fix only prevents Firefox and Thunderbird from accepting bad data. This patch does not fix the vulnerability in Internet Explorer." And more blunt was the single suggested work-around. "Mozilla highly recommends using Firefox to browse the Web to prevent attackers from exploiting this problem in Internet Explorer," it said. One of the researchers who last week pinned blame on Microsoft had not changed his tune as of yesterday. "This [Firefox patch] does not actually fix the flaw in Internet Explorer, but simply patches one of the myriads of attack vectors," said Thor Larholm, a Danish researcher who publicized the exploit. "I can definitely understand the initial reaction from Microsoft. Most of the emphasis in the public vulnerability reports were dealing with Firefox, the '-chrome' command-line argument, and how to properly escape the exploit code. "However, I can still automatically launch a wide range of external applications from Internet Explorer and provide them with arbitrary command-line arguments, [including] AcroRd32.exe (Adobe Acrobat PDF Reader), aim.exe (AOL Instant Messenger), Outlook.exe, msimn.exe (Outlook Express), netmeeting.exe, HelpCtr.exe (Windows Help Center), mirc.exe, Skype.exe, wab.exe (Windows Address Book), and wmplayer.exe (Windows Media Player), just to name a few," Larholm wrote. Microsoft's position last week has been that IE is not buggy and so wouldn't be patched. "Microsoft has thoroughly investigated the claim of a vulnerability in Internet Explorer and found that this is not a vulnerability in a Microsoft product," a spokesman said last Thursday. Other patches put into place by 2.0.0.5 included multiple memory corruption bugs. "With enough effort ... some of these could be exploited to run arbitrary code," a cross-site scripting vulnerability and a flaw that could give attackers access to the browser's cache. Mozilla picked up the pace to push Firefox 2.0.0.5 out to users earlier than scheduled. On Monday, Mozilla developers pegged the update as a "fire drill release" because of the critical nature of the firefoxurl:// bug. At the time, July 19 was the target for 2.0.0.5's release. "But we might be able to accelerate the release," notes from a weekly status meeting read. This is the first update to Firefox since support for the older 1.5.x line was discontinued. Earlier this month, users of that version were offered an automatic update to Firefox 2.0.0.4.
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(InfoWorld) - A new update for the Firefox browser fixes an unusual vulnerability that could cause malicious code to run if the browser is launched by Microsoft's Internet Explorer. The critical vulnerability involves Internet Explorer's ability to launch other applications such as Excel or Firefox after a user clicks on a specially written link in a Web page. Explorer does not properly check the syntax of the link, which could allow a malicious link to attack Firefox if launched, according to Mozilla, the open source project that develops Firefox. Microsoft said itÂ didn't feel it was an issue for Explorer. Either way, Firefox's 2.0.0.5 release fixes the problem by now validating incoming data. The update will automatically be pushed out to Firefox 2.0 users via the built-in update system, Mozilla said in an advisory. The update also fixes seven other vulnerabilities, two of which are considered "critical" by Mozilla. One problem, labelled 2007-18, is a memory corruption problem that could cause arbitrary code to run on a machine. The other, 2007-21, could also allow arbitrary code to run.
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Mozilla releases the third beta of Firefox 3, eight weeks after it made the last major milestone for its open-source browser.
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Six vulnerabilities, one critical, have been patched in the latest round of Firefox patches issued Wednesday. For those keeping score at home, total browser patch counts so far in 2007 stand at Firefox 22, Internet Explorer 8.