{"id":"CVE-2021-31257","details":"The HintFile function in GPAC 1.0.1 allows attackers to cause a denial of service (NULL pointer dereference) via a crafted file in the MP4Box command.","modified":"2026-08-03T14:35:07.535827Z","published":"2021-04-19T19:15:18.267Z","database_specific":{"unresolved_ranges":[{"source":"CPE_STRING","vendor_product":"gpac:gpac","cpes":["cpe:2.3:a:gpac:gpac:1.0.1:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.0.1"},{"last_affected":"1.0.1"}]}]},"references":[{"type":"FIX","url":"https://github.com/gpac/gpac/commit/87afe070cd6866df7fe80f11b26ef75161de85e0"},{"type":"EVIDENCE","url":"https://github.com/gpac/gpac/issues/1734"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gpac/gpac","events":[{"introduced":"0"},{"fixed":"87afe070cd6866df7fe80f11b26ef75161de85e0"}],"database_specific":{"source":"REFERENCES"}}],"versions":["v1.0.0","v0.9.0","v0.9.0-preview","v0.6.0","v0.5.2"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-31257.json","vanir_signatures_modified":"2026-08-03T14:35:07Z","vanir_signatures":[{"signature_type":"Function","signature_version":"v1","source":"https://github.com/gpac/gpac/commit/87afe070cd6866df7fe80f11b26ef75161de85e0","target":{"file":"applications/mp4box/main.c","function":"HintFile"},"deprecated":false,"digest":{"length":3821,"function_hash":"53835788517663611656893566215389549396"},"id":"CVE-2021-31257-23554903"},{"deprecated":false,"digest":{"line_hashes":["115810165752277888506123696991728882828","266874972863759520941413163698542361826","209509910709474573358654816600514102176","124401416960144259094587606488848084048"],"threshold":0.9},"id":"CVE-2021-31257-8e628971","signature_type":"Line","signature_version":"v1","source":"https://github.com/gpac/gpac/commit/87afe070cd6866df7fe80f11b26ef75161de85e0","target":{"file":"applications/mp4box/main.c"}}]}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}