Clear it in 3 steps
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Start the environment
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Investigate the target
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Submit the flag
fuzz-results.log is generated from the FLAG injected at startup. Select the SIGSEGV input and XOR-decrypt it with BLAKE2s(fuzz-case-17) to recover the flag.
Inspect fuzz-results.log and identify the target record
select the SIGSEGV input and XOR-decrypt it with BLAKE2s(fuzz-case-17)
Verify that the reconstructed value has FLAG{...} format