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PRIOn knowledge basePRION:CVE-2020-10933HistoryMay 04, 2020 - 3:15 p.m.
Heap overflow
2020-05-0415:15:00
PRIOn knowledge base
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An issue was discovered in Ruby 2.5.x through 2.5.7, 2.6.x through 2.6.5, and 2.7.0. If a victim calls BasicSocket#read_nonblock(requested_size, buffer, exception: false), the method resizes the buffer to fit the requested size, but no data is copied. Thus, the buffer string provides the previous value of the heap. This may expose possibly sensitive data from the interpreter.
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