Use-after-free vulnerability in mruby's File#initialize_copy() method allows for arbitrary code execution

CVE-2018-10199 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

In versions of mruby up to and including 1.4.0, a use-after-free vulnerability exists in src/io.c::File#initilialize_copy(). An attacker that can cause Ruby code to be run can possibly use this to execute arbitrary code.

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