An integer overflow in Exiv2 through 0.27.1 allows an attacker to cause a denial of service (SIGSEGV) via a crafted PNG image file, because PngImage::readMetadata mishandles a chunkLength - iccOffset subtraction.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-13109.json"