Here we go again: Just like the recently-reported PHP Floating Point Bug causes servers to go into infinite loops when parsing certain double-precision floating-point numbers, Sun/Oracle's JVM does it, too. It gets better: you can lock up a thread on most servers just by sending a particular header value. Sun/Oracle has known about the bug for something like 10 years, but it's still not fixed. Java Servlet containers are patching to avoid the problem, but application code will still be vulnerable to user input. Read more: Slashdot
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