SillyDog701

[Antony]

Mozilla Corporation has released Firefox 2.0.0.6. This version fixes two security vulnerabilities, correcting unescaped URIs passed to external programs and preventing privilege escalating through chrome-loaded [tt]about:blank[/tt] windows.

Less than two weeks ago (18th July), Mozilla Corporation released Firefox 2.0.0.5 correcting two critical security vulnerabilities. Firefox 2.0.0.4 was released on 30th May and Firefox 2.0.0.3 was released on 21st March this year.

Firefox 2.0.0.6 can be downloaded from Mozilla's download page. Firefox 2.0.0.6's Release Notes is also available.

UserAgent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.5) Gecko/20070713 Firefox/2.0.0.5

[Fulvio]

Some people got announcements. I did not, but when I selected Help|Check for Updates, I got the incremental update. No problem.

UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6

[Antony]

mozillaZine has a news report on this, Mozilla Firefox 2.0.0.6 Released. It says,

The more serious flaw involves Firefox not percent-encoding spaces and double quotes in URLs passed to helper applications, which can allow malicious webpages to open programs with potentially dangerous command line parameters. The other vulnerability is a privilege elevation bug involving extensions, which was accidentally introduced in Firefox 2.0.0.5.

The URL protocol handling flaw is a similar class of exploit to the firefoxurl:// URL vulnerability, which was fixed with the release of Firefox 2.0.0.5. In the original firefoxurl:// exploit, an attacker could use Microsoft Internet Explorer to launch Firefox with malicious command line parameters. In the flaw fixed in Firefox 2.0.0.6, Firefox is used as the attack vector to start other applications with dangerous arguments. The exploit could be extended to execute any program in a known location, possibly passing dangerous command line parameters.

It is interesting to note that Mozilla still blames Internet Explorer for the [tt]firefoxurl://[/tt] vulnerability (now fixed).

UserAgent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6