CVE-2020-37239

EIP tracks 1 public exploit for CVE-2020-37239. PoCs published by Carter Yagemann.

AI-analyzed exploit summary This PoC demonstrates a broken double-free detection mechanism in libbabl due to libc's malloc/free overwriting the signature used for tracking allocations. The exploit triggers a double-free condition without proper detection, leading to potential memory corruption.

libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety checks by exploiting signature overwriting in freed chunks. Attackers can call babl_free() twice on the same pointer without triggering detection, as libc's malloc metadata overwrites babl's signature field upon freeing, enabling potential memory corruption and code execution.