Mozilla Firefox iframe.contentWindow.focus Deleted Object Reference Vulnerability

Mozilla Firefox is prone to a vulnerability when rendering malformed JavaScript content. An attacker could exploit this issue to cause the browser to fail or potentially execute arbitrary code.

Firefox versions 1.5 through to 1.5.0.2 running on Windows and Linux platforms are affected.

Vulnerable:

Mozilla Firefox 1.5 .2
Mozilla Firefox 1.5 .1
Mozilla Firefox 1.5 beta 2
Mozilla Firefox 1.5 beta 1
Mozilla Firefox 1.5
Mozilla Firefox 1.5.0.2

Fonte: Security Focus

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