CVE-2019-6977

The CVE-2019-6977 issue affects the GD Graphics Library (LibGD) via gdImageColorMatch in gd_color_match.c. A heap-based buffer overflow in this function affects GD 2.2.5 and PHP builds before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1 when imagecolormatch processes cra...