{"id":"CVE-2021-32135","details":"The trak_box_size 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":"2026-08-07T16:50:21.217257Z","published":"2021-09-13T15:15:24.577Z","references":[{"type":"FIX","url":"https://github.com/gpac/gpac/commit/b8f8b202d4fc23eb0ab4ce71ae96536ca6f5d3f8"},{"type":"EVIDENCE","url":"https://github.com/gpac/gpac/issues/1757"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gpac/gpac","events":[{"introduced":"d8538e8ae946b32d99c6b2c57cbb327146e9cd9d"},{"last_affected":"d8538e8ae946b32d99c6b2c57cbb327146e9cd9d"},{"fixed":"b8f8b202d4fc23eb0ab4ce71ae96536ca6f5d3f8"}],"database_specific":{"extracted_events":[{"introduced":"1.0.1"},{"last_affected":"1.0.1"}],"source":["CPE_STRING","REFERENCES"],"cpe":"cpe:2.3:a:gpac:gpac:1.0.1:*:*:*:*:*:*:*"}}],"versions":["1.0.1","v1.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32135.json","vanir_signatures_modified":"2026-08-07T16:50:21Z","vanir_signatures":[{"digest":{"function_hash":"177716631601263422887816959889517703023","length":770},"id":"CVE-2021-32135-02afd05f","signature_type":"Function","signature_version":"v1","source":"https://github.com/gpac/gpac/commit/b8f8b202d4fc23eb0ab4ce71ae96536ca6f5d3f8","target":{"function":"trak_box_size","file":"src/isomedia/box_code_base.c"},"deprecated":false},{"signature_version":"v1","source":"https://github.com/gpac/gpac/commit/b8f8b202d4fc23eb0ab4ce71ae96536ca6f5d3f8","target":{"file":"src/isomedia/box_code_base.c"},"deprecated":false,"digest":{"line_hashes":["180982079912359863713092613983514262329","259171904111037091140515259864588543617","104134878679528383612431513969623128882","325562312999389756479242236541877472983"],"threshold":0.9},"id":"CVE-2021-32135-c6acd99d","signature_type":"Line"}]}}],"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"}]}