{"id":"CVE-2021-35306","aliases":["EUVD-2021-21949","GHSA-rw53-7mrx-fqpw","UBUNTU-CVE-2021-35306"],"status":"published","title":"An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the...","description":"An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the function AP4_StszAtom::WriteFields located in Ap4StszAtom.cpp. It allows an attacker to cause a denial of service (DOS).","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00976,"percentile":0.62418,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2021-08-05T19:08:28Z","modified":"2026-10-20T10:54:45Z","affected":[{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"kodi-inputstream-adaptive","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6.14+ds1-1","2.6.23+ds1-1","19.0.0+ds1-1","19.0.0+ds1-2"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"kodi-inputstream-adaptive","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20.3.11+ds-1","20.3.17+ds-4","20.3.18+ds-1","20.3.18+ds-1build1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"kodi-inputstream-adaptive","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["21.5.9+ds-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"kodi-inputstream-adaptive","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["21.5.16+ds-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"kodi-inputstream-adaptive","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["21.5.9+ds-1","21.5.16+ds-1"]}],"products":[{"vendor":"axiosys","product":"bento4"}],"references":[{"url":"https://github.com/axiomatic-systems/Bento4/issues/615","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35306"},{"url":"https://github.com/advisories/GHSA-rw53-7mrx-fqpw"},{"url":"https://ubuntu.com/security/CVE-2021-35306","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-35306","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-35306","description":"An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the function AP4_StszAtom::WriteFields located in Ap4StszAtom.cpp. It allows an attacker to cause a denial of service (DOS).","status":"published","published":"2021-08-05T19:08:28Z","modified":"2024-08-04T00:33:51.252Z","updated_at":"2026-11-02T14:33:09.864034Z"}],"euvd":[{"id":"EUVD-2021-21949","description":"An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the function AP4_StszAtom::WriteFields located in Ap4StszAtom.cpp. It allows an attacker to cause a denial of service (DOS).","status":"published","published":"2021-08-05T19:08:28Z","modified":"2024-08-04T00:33:51Z","updated_at":"2026-11-03T03:24:30.441845Z"}],"ghsa":[{"id":"GHSA-rw53-7mrx-fqpw","title":"An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the...","description":"An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the function AP4_StszAtom::WriteFields located in Ap4StszAtom.cpp. It allows an attacker to cause a denial of service (DOS).","status":"published","published":"2022-05-24T19:10:09Z","modified":"2023-01-30T05:01:17Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:46:22.480874Z"}],"nvd":[{"id":"CVE-2021-35306","description":"An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the function AP4_StszAtom::WriteFields located in Ap4StszAtom.cpp. It allows an attacker to cause a denial of service (DOS).","status":"published","published":"2021-08-05T20:15:09.387Z","modified":"2026-06-17T03:57:25.74Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:06:56.562207Z"}],"osv":[{"id":"CVE-2021-35306","description":"An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the function AP4_StszAtom::WriteFields located in Ap4StszAtom.cpp. It allows an attacker to cause a denial of service (DOS).","status":"published","published":"2021-08-05T20:15:09.387Z","modified":"2026-10-20T10:54:45.995520146Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:20.13324Z"},{"id":"UBUNTU-CVE-2021-35306","description":"An issue was discovered in Bento4 through v1.6.0-636. A NULL pointer dereference exists in the function AP4_StszAtom::WriteFields located in Ap4StszAtom.cpp. It allows an attacker to cause a denial of service (DOS).","status":"published","published":"2021-08-05T20:15:00Z","modified":"2026-10-17T12:55:53.963884851Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:27.870979Z"}]}}