31 October 2006 | 5,583 views

New Firefox vulnerability – DoS and [DELETED] – UPDATED

Don't let a Dragon into your website!

This has just been posted to Bugtraq.

For now you can test if your version is vulnerable, here. (will cause Firefox to close)

So far Firefox 1.5.0.7 and 2.0 (Linux) have been tested, and both vulnerable. Firefox 1.0.7 (Win32), not vulnerable.

The code used on the test page and the one submitted to Bugtraq can be found here.

Severity: … not really

Update: This attack does not allow remote code execution! It has been posted on the mailing lists and several news sites.

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6 Responses to “New Firefox vulnerability – DoS and [DELETED] – UPDATED”

  1. Michael B 31 October 2006 at 9:12 pm Permalink

    2.0 on Mac OS X also died.

  2. Richard 3 November 2006 at 2:01 am Permalink

    Thank you for the test. My version 2 is vulnerable.

  3. Jacob 6 November 2006 at 8:32 pm Permalink

    Firefox 2.0 /w NoScript didn’t crash.

  4. Gouki 6 November 2006 at 11:56 pm Permalink

    Disabling Java and JavaScript is enough.