An integer overflow in the PngImg::InitStorage_() function of png-img before 3.1.0 leads to an under-allocation of heap memory and subsequently an exploitable heap-based buffer overflow when loading a crafted PNG file.
CVSS 3.1HIGH 8.8·Network·No auth·User interaction·EPSS 0.02216·Published 2021-02-19·Fixed in 3.1.0CWE-190