An exploitable buffer overflow vulnerability exists in the XCF property handling functionality of SDL_image 2.0.1. A specially crafted xcf file can cause a stack-based buffer overflow resulting in potential code execution. An attacker can provide a specially crafted XCF file to trigger this vulnerability.
https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0394
https://www.debian.org/security/2018/dsa-4184