CVE-2017-6960

An issue was discovered in apng2gif 1.7. There is an integer overflow resulting in a heap-based buffer over-read, related to the load_apng function and the imagesize variable.

CVE-2017-6962

An issue was discovered in apng2gif 1.7. There is an integer overflow resulting in a heap-based buffer overflow. This is related to the read_chunk function making an unchecked addition of 12.