Overflow Data | Override Field | Experimental Results |
junk data (AAAA) | override chunk header | Canary address is overwritten and addressed abnormally |
junk data (AAAA) | override prev_size | Canary addressing is normal MD5 checksum verification failed |
junk data (AAAA) | override prev_size & canary address | Canary address is overwritten and addressed abnormally |
create fake chunk and modify chunk size | The chunk header is completely covered | Canary addressing is normal MD5 checksum verification failed |
normal write | no coverage | Canary addressing normal MD5 checksum is normal |