Aerosol Posted March 10, 2015 Report Share Posted March 10, 2015 This is a proof-of-concept exploit that is able to escape from Native Client's x86-64 sandbox on machines that are susceptible to the DRAM "rowhammer" problem. It works by inducing a bit flip in read-only code so that the code is no longer safe, producing instruction sequences that wouldn't pass NaCl's x86-64 validator. Note that this uses the CLFLUSH instruction, so it doesn't work in newer versions of NaCl where this instruction is disallowed by the validator.Download Quote Link to comment Share on other sites More sharing options...
