CVE-2017-6949

CVE-2017-6949 is a buffer overflow vulnerability affecting CHICKEN Scheme through version 4.12.0, specifically when allocating SRFI-4 vectors in unmanaged memory. The vulnerability arises from unsanitized vector sizes being passed to malloc(), potentially leading to a segfault or buffer overflow. With a CVSS v3 score of 8.1 (High), this vulnerability could allow an unauthenticated attacker to achieve high impact to confidentiality, integrity, and availability with high attack complexity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.