{"id":"CVE-2019-20631","details":"An issue was discovered in libgpac.a in GPAC before 0.8.0, as demonstrated by MP4Box. It contains an invalid pointer dereference in gf_list_count in utils/list.c that can cause a denial of service via a crafted MP4 file.","modified":"2026-05-18T11:37:26.664442Z","published":"2020-03-24T19:15:21.133Z","references":[{"type":"EVIDENCE","url":"https://github.com/gpac/gpac/issues/1270"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gpac/gpac","events":[{"introduced":"0"},{"fixed":"6b4ab401297be43b57f9eddd675971a8a5feab44"}],"database_specific":{"source":"CPE_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"0.8.0"}],"cpe":"cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*"}}],"versions":["v0.7.1","v0.7.0","v0.6.0","v0.5.2"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-20631.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}