Mozilla Patches Part Two: Huh

Mozilla fixes 10 Firefox flaws, half seen as ‘critical’:

Mozilla also patched potential identity leaks, spoofing bugs and cross-site scripting vulnerabilities in 2.0.0.13. But the fix that caught Storms’ eye was detailed by 2008-18, a fix for LiveConnect, a feature that harks back to Firefox’s predecessor, Netscape Navigator. LiveConnect lets Java applets call a Web page’s embedded JavaScript, or JavaScript access the Java runtime libraries, and it is used by both Firefox and Apple Inc.’s Safari 3 browser.

“Sun has updated the Java Runtime Environment with a fix for this problem. Mozilla has also added a fix to LiveConnect to protect users who don’t have the latest version of Java,” Mozilla said in the advisory.

“Here we have Firefox putting out a mitigation step for a bug in Java,” said Storms. “It’s a welcome addition when one vendor can help out another.”

All 10 vulnerabilities were also patched by the SeaMonkey Project, a separate open-source initiative that develops a multifunction browser suite.

The Thunderbird e-mail client, meanwhile, is affected by the five critical flaws listed in 2008-14 and 2008-15. “Thunderbird shares the browser engine with Firefox and could be vulnerable if JavaScript were to be enabled in mail,” read the first of the two bulletins. “This is not the default setting, and we strongly discourage users from running JavaScript in mail.”

A release date for Thunderbird 2.0.0.13 to fix the flaws has not been set. According to David Ascher, the head of Mozilla Messaging, the e-mailer’s update will follow Firefox’s by “several weeks.” In a post to his blog last week, Ascher cited several reasons why a simultaneous release of Thunderbird and Firefox updates was impossible. “Some of those resource contentions are due to not enough automation for the Thunderbird release process, and some of it is the consequence of not enough people with the right training,” he said.

Ascher defended the lag by noting that while JavaScript is turned on by default in Firefox, it is not in Thunderbird. “We could delay releasing Firefox until Thunderbird was ready, in the interest of mitigating the risk of someone using knowledge from the Firefox release to try and attack Thunderbird users,” said Ascher. “But that would mean leaving over 150 million users vulnerable. So, applying the correct math, we release Firefox security updates as soon as possible, and Thunderbird security updates as soon as possible.”

Nice that the Firefox people can help cover Sun’s asses but not Thunderbird’s.

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