libgd 2.1.1 - Signedness Heap Overflow

Vulnerability details Represents the block index size of 4 bytes is stored in a signed integer. chunkIdxi. size by gdGetIntto resolve the GD2 head during libgd-2.1.1/src/gdgd2. c: ,---- | 53 typedef struct | 54 int offset; | 55 int size; | 56 | 57 tchunkinfo; ---- libgd-2.1.1/src/gdgd2. c: ,---- ...