New Firefox vulnerability – DoS and [DELETED] – UPDATED

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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.

Posted in: Exploits/Vulnerabilities

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4 Responses to New Firefox vulnerability – DoS and [DELETED] – UPDATED

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

    2.0 on Mac OS X also died.

  2. Richard November 3, 2006 at 2:01 am #

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

  3. Jacob November 6, 2006 at 8:32 pm #

    Firefox 2.0 /w NoScript didn’t crash.

  4. Gouki November 6, 2006 at 11:56 pm #

    Disabling Java and JavaScript is enough.