Critical Firefox flaws targeted by exploit code
Proof-of-concept code targeting security holes in Firefox and the Mozilla Suite have started appearing on public mailing lists. An attacker could exploit the flaws to launch malicious code. But users can protect themselves by updating to Firefox 1.0.3 and Mozilla Suite 1.7.7.
The Bethesda, Md.-based SANS Internet Storm Center Web site also reported that two proof-of-concept examples appeared over the weekend. The site echoed Hypponen's advice, saying, "The little green update button in Firefox is your friend."
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