ForAllSecure targetted CodeJitsu running CROMU_00073 in round 28.

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Type 1 POV

eip:0xa68d5503 - ecx:0x6a9c0c3a

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The application exited with a segmentation fault

0x80482c6: 0x80482c6 // esp: 0xbaaaaf28

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Execution control corruption via return (return to: 0xbaaaaf28).

Tracing data from eip: 0x80482c6 tracing source of memory: 0xbaaaaf28 (value: 0xa68d5503)

0x805027d : receive syscall (return)
0x80483b7 : mov dl,byte ptr [ecx+eax]
0x80483c7 : mov byte ptr [ecx+eax],dl
0x80482c6: ret // address: 0xbaaaaf28 value: 0xa68d5503

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Negotiated general register: ecx:0x6a9c0c3a

Tracing data from eip: 0x80482c6 tracing source of register: ecx (value: 0x6a9c0c3a)

0x805027d : receive syscall (return)
0x80483b7 : mov dl,byte ptr [ecx+eax]
0x80483c7 : mov byte ptr [ecx+eax],dl
0x80482be : mov ecx,dword ptr [ebp-0xc]
0x80482c6: ret // address: ecx value: 0x6a9c0c3a