CVE-2017-6961: APNG2GIF Project APNG2GIF

Medium severity, CVSS 5.5. EPSS: 0.8% chance of exploitation in the next 30 days.

An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing huge memory allocations, resulting in a crash. This is related to the read_chunk function using the pChunk->size value (within the PNG file) to determine the amount of memory to allocate.

Affected products

Published 2017-03-17. Last modified 2026-06-17.