Heap-based buffer over-read in function pngconvert4 in file pngex.cc in AdvanceMAME through 2.1.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-23909.json"
[ { "events": [ { "introduced": "0" }, { "last_affected": "2.1" } ] } ]