DoS attack found in PHP thanks to x87 FP

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Submitted by

yuhong

on Wednesday January 05, 2011 @01:56AM

yuhong writes "Thanks to the fact that in x87 all floating point values stored in registers are 80-bit, a DoS attack has been found where converting the number 2.2250738585072011e-308 using most 32-bit versions of PHP hangs the conversion routine, causing PHP to freeze."
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DoS attack found in PHP thanks to x87 FP

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Cutting to the chase (Score:2)

by daemonburrito (1026186) writes:

Here is Lerdorf's comment on the ticket [php.net].
This is a well-known, ancient IA-32 or gcc bug (depending on who you ask), and doesn't have much to do with PHP specifically.

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DoS attack found in PHP thanks to x87 FP

Cutting to the chase (Score:2)