{"id":"CVE-2018-6406","details":"The function ParseVP9SuperFrameIndex in common/libwebm_util.cc in libwebm through 2018-01-30 does not validate the child_frame_length data obtained from a .webm file, which allows remote attackers to cause an information leak or a denial of service (heap-based buffer over-read and later out-of-bounds write), or possibly have unspecified other impact.","modified":"2026-03-14T09:30:06.897461Z","published":"2018-01-30T21:29:00.400Z","related":["openSUSE-SU-2018:0359-1","openSUSE-SU-2018:0360-1","openSUSE-SU-2024:10681-1","openSUSE-SU-2024:12948-1"],"references":[{"type":"WEB","url":"https://github.com/dwfault/PoCs/blob/master/libwebm%20ParseVP9SuperFrameIndex%20memory%20corruption/libwebm%20ParseVP9SuperFrameIndex%20OOB%20read.md"},{"type":"REPORT","url":"https://bugs.chromium.org/p/webm/issues/detail?id=1492"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-6406.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"2018-01-30"}]},{"events":[{"introduced":"0"},{"last_affected":"2018-01-30"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}