CVE-2003-0107

This exploit leverages a buffer overflow in Zlib's gzprintf function (CVE-2003-0107) to execute arbitrary shellcode. It constructs a malicious buffer with a NOP sled and shellcode to spawn a shell, targeting Zlib versions up to 1.1.4.

This exploit demonstrates a buffer overflow vulnerability in Zlib 1.1.4 via the gzprintf() function, which uses vsprintf() without proper boundary checks. The PoC attempts to trigger the overflow by writing a large format string to a gzFile handle.