{"id":"JLSEC-2026-1176","summary":"FFmpeg versions 0.6.3 through 8.1.2 contain an infinite loop vulnerability in the RTP/ASF demuxer...","details":"FFmpeg versions 0.6.3 through 8.1.2 contain an infinite loop vulnerability in the RTP/ASF demuxer within `libavformat/rtpdec_asf.c` that allows remote attackers to cause denial of service by sending a crafted RTP/ASF stream. The `rtp_asf_fix_header` function fails to validate a minimum chunksize when iterating over ASF objects, causing the loop pointer to never advance when a chunksize is smaller than the 24-byte minimum ASF object header size, resulting in CPU exhaustion that denies service to legitimate users.","modified":"2026-08-08T23:15:04.371367178Z","published":"2026-08-07T13:27:45.313Z","upstream":["CVE-2026-64834","GHSA-5xcx-3qx2-qv4x","EUVD-2026-47758"],"database_specific":{"license":"CC-BY-4.0","sources":[{"id":"CVE-2026-64834","imported":"2026-08-08T05:24:16.078Z","modified":"2026-07-28T17:01:56.720Z","published":"2026-07-22T18:17:05.780Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-64834","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64834","database_specific":{"status":"Analyzed"}},{"html_url":"https://github.com/advisories/GHSA-5xcx-3qx2-qv4x","id":"GHSA-5xcx-3qx2-qv4x","imported":"2026-08-08T05:24:20.682Z","modified":"2026-07-22T18:32:47Z","published":"2026-07-22T18:32:40Z","url":"https://api.github.com/advisories/GHSA-5xcx-3qx2-qv4x"},{"published":"2026-07-22T17:06:07Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-47758","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-47758","id":"EUVD-2026-47758","imported":"2026-08-08T05:24:18.656Z","modified":"2026-07-28T01:06:04Z"}]},"references":[{"type":"WEB","url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/11d5f475be95d22d5f0692220cc772b116abc632"},{"type":"WEB","url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23663"},{"type":"WEB","url":"https://github.com/advisories/GHSA-5xcx-3qx2-qv4x"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64834"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/ffmpeg-infinite-loop-dos-via-rtp-asf-demuxer"}],"affected":[{"package":{"name":"FFMPEG_jll","ecosystem":"Julia","purl":"pkg:julia/FFMPEG_jll?uuid=b22a6f82-2f65-5046-a5b2-351ab43fb4e5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"9.0.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1176.json"}},{"package":{"name":"FFMPEG_nogpl_jll","ecosystem":"Julia","purl":"pkg:julia/FFMPEG_nogpl_jll?uuid=a6892c6b-5768-548c-b024-ff8dabf482c5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"9.0.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1176.json"}},{"package":{"name":"FFplay_jll","ecosystem":"Julia","purl":"pkg:julia/FFplay_jll?uuid=c4dce911-e170-5107-8314-c7bdc6785395"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"9.0.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1176.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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"}]}