Potential double-free in gdImage*Ptr(). (CVE-2019-6978) gdImageColorMatch() out of bounds write on heap. (CVE-2019-6977) Uninitialized read in gdImageCreateFromXbm(). (CVE-2019-11038) Double-free in gdImageBmp. (CVE-2018-1000222) Potential NULL pointer dereference in gdImageClone(). (CVE-2018-14553) Potential infinite loop in gdImageCreateFromGifCtx(). (CVE-2018-5711) and see https://github.com/libgd/libgd/blob/gd-2.3.0/CHANGELOG.md (if anyone is thinking of backporting, gdlib-config was removed, p5-GD and cvsgraph updates will be needed)