Category Archives: Firefox

JIT Fixed in Firefox 3.5.1, New Vulnerability Exposed

Firefox 3.5.1 was released on Friday, July 17 which included a patch for the Just-in-time (JIT) JavaScript compiler exploit. However, a new stack-based buffer overflow vulnerability has been exposed with sample exploit code. An attacker can cause a buffer overflow and … Continue reading

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Critical JavaScript Vulnerability Surfaces in Firefox 3.5

Firefox 3.5 boasts of screaming fast JavaScript performance — almost twice as fast as Firefox 3. Firefox 3.5 attributes its dramatically better JavaScript performance to the TraceMonkey Just-in-time (JIT) JavaScript compiler. However, a serious remote buffer overflow security exploit was discovered last week in Firefox 3.5’s Just-in-time (JIT) JavaScript compiler, which enables the execution of malicious code. Continue reading

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