heap buffer overflow

in line

robdns/src/zonefile-insertion.c

Line 161 in d76d2e6

memcpy(block->filename, parser->src.filename, sizeof(block->filename));

in some case the size of block->filename will surpass the size of parser->src.filename, which will leak the heap information. This can be detected by ASAN.

[kittener]

Hello, could you provide a Poc that can reproduce this vulnerability?