{"id":"CVE-2016-20099","details":"L-SMASH through 2.14.5 contains an infinite loop vulnerability in vc1_importer_probe() in importer/vc1_imp.c that allows attackers to hang applications via crafted input files. Attackers can supply a file consisting only of zero bytes, which lsmash_read_file() probes automatically, causing indefinite CPU consumption and denial of service.","modified":"2026-10-16T07:12:42.087569649Z","published":"2026-10-14T15:16:58.003Z","database_specific":{},"references":[{"type":"WEB","url":"https://github.com/l-smash/l-smash/blob/v2.14.5/importer/vc1_imp.c#L462-L488"},{"type":"WEB","url":"https://hackmd.io/@haind-pwn/cve-2016-20099-2026-110599-l-smash-hevc-importer-double-free"},{"type":"WEB","url":"https://hackmd.io/@haind-pwn/l-smash-hevc-importer-double-free"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/l-smash-through-2.14.5-infinite-loop-in-vc-1-importer-probe"},{"type":"FIX","url":"https://github.com/l-smash/l-smash/pull/58"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/l-smash/l-smash","events":[{"introduced":"0"},{"fixed":"5b85a6bf9ca8924144bd3026b17355638a6b7430"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.14.5"}],"source":"DESCRIPTION"}}],"versions":["v2.9.1","v2.3.0","v1.13.27","v1.13.2","v1.13.0","v1.12.3","v1.11.15","v1.11.8","v1.11.7","v1.9.1","v1.5.2"],"database_specific":{"vanir_signatures":[{"target":{"file":"core/isom.c","function":"lsmash_finish_movie"},"deprecated":false,"digest":{"function_hash":"258171829318283789853019771067608029095","length":3243},"id":"CVE-2016-20099-2cfc3263","signature_type":"Function","signature_version":"v1","source":"https://github.com/l-smash/l-smash/commit/5b85a6bf9ca8924144bd3026b17355638a6b7430"},{"target":{"file":"core/isom.c","function":"lsmash_get_media_parameters"},"deprecated":false,"digest":{"length":2440,"function_hash":"122600866330261177225592664187496311512"},"id":"CVE-2016-20099-df4c93bd","signature_type":"Function","signature_version":"v1","source":"https://github.com/l-smash/l-smash/commit/5b85a6bf9ca8924144bd3026b17355638a6b7430"},{"digest":{"line_hashes":["22881622455552116654521192292727681336","100944208089240152560343746300914922837","286837033719373017134738728638680096277","284604214810550959992888791693487489436","217433449931911348866240272005123242288","223425883954322861404743268610236296236","140731775191293350531544135481474640228","334094900683732859524058526734467500930","219611294876022819315654925015340486817"],"threshold":0.9},"id":"CVE-2016-20099-e278c12f","signature_type":"Line","signature_version":"v1","source":"https://github.com/l-smash/l-smash/commit/5b85a6bf9ca8924144bd3026b17355638a6b7430","target":{"file":"core/isom.c"},"deprecated":false}],"vanir_signatures_modified":"2026-10-16T07:12:42Z","source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-20099.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}