{"id":"UBUNTU-CVE-2026-65705","details":"FFmpeg versions 3.4 through 8.1.2 contain an out-of-bounds write vulnerability in the vf_floodfill video filter that allows attackers to corrupt heap memory by supplying a dynamically sized video stream with filtergraph reinitialization disabled via -reinit_filter 0. When config_input() allocates the points traversal stack based on initial frame dimensions and a subsequent larger frame is processed, filter_frame() performs flood-fill neighbor pushes beyond the original allocation boundary, resulting in heap corruption and process crash with potential for code execution depending on heap layout and process hardening.","modified":"2026-09-10T00:56:43.324061761Z","published":"2026-07-23T20:17:00Z","related":["USN-8716-1","USN-8716-2"],"upstream":["CVE-2026-65705"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-65705"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-65705"},{"type":"REPORT","url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23780"},{"type":"REPORT","url":"https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/f186c50cf53aec20e9a29059cb22ca3f2d59201c"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/ffmpeg-vf-floodfill-out-of-bounds-write-via-filter-frame"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8716-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8716-2"}],"affected":[{"package":{"name":"libav","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libav?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6:0.8.7-1ubuntu2","6:9.10-1ubuntu1","6:9.10-1ubuntu2","6:9.10-1ubuntu5","6:9.10-1ubuntu6","6:9.10-1ubuntu7","6:9.11-2ubuntu1","6:9.11-2ubuntu2","6:9.13-0ubuntu0.14.04.1","6:9.14-0ubuntu0.14.04.1","6:9.16-0ubuntu0.14.04.1","6:9.18-0ubuntu0.14.04.1","6:9.20-0ubuntu0.14.04.1","6:9.20-0ubuntu0.14.04.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libav-tools","binary_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"binary_name":"libavcodec-extra","binary_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"binary_version":"6:9.20-0ubuntu0.14.04.1+esm1","binary_name":"libavcodec-extra-54"},{"binary_version":"6:9.20-0ubuntu0.14.04.1+esm1","binary_name":"libavcodec54"},{"binary_name":"libavdevice-extra-53","binary_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"binary_version":"6:9.20-0ubuntu0.14.04.1+esm1","binary_name":"libavdevice53"},{"binary_version":"6:9.20-0ubuntu0.14.04.1+esm1","binary_name":"libavfilter-extra-3"},{"binary_name":"libavfilter3","binary_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"binary_version":"6:9.20-0ubuntu0.14.04.1+esm1","binary_name":"libavformat-extra-54"},{"binary_version":"6:9.20-0ubuntu0.14.04.1+esm1","binary_name":"libavformat54"},{"binary_name":"libavresample1","binary_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"binary_name":"libavutil-extra-52","binary_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"binary_name":"libavutil52","binary_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"binary_name":"libswscale-extra-2","binary_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"binary_name":"libswscale2","binary_version":"6:9.20-0ubuntu0.14.04.1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-65705.json"}},{"package":{"name":"ffmpeg","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.4.11-0ubuntu0.1+esm15"}]}],"versions":["7:3.3.4-2","7:3.3.4-2build3","7:3.4-2ubuntu2","7:3.4-4","7:3.4-4build1","7:3.4.1-1","7:3.4.1-1build1","7:3.4.2-1","7:3.4.2-1build1","7:3.4.2-2","7:3.4.4-0ubuntu0.18.04.1","7:3.4.6-0ubuntu0.18.04.1","7:3.4.8-0ubuntu0.2","7:3.4.11-0ubuntu0.1","7:3.4.11-0ubuntu0.1+esm1","7:3.4.11-0ubuntu0.1+esm2","7:3.4.11-0ubuntu0.1+esm3","7:3.4.11-0ubuntu0.1+esm4","7:3.4.11-0ubuntu0.1+esm5","7:3.4.11-0ubuntu0.1+esm6","7:3.4.11-0ubuntu0.1+esm7","7:3.4.11-0ubuntu0.1+esm8","7:3.4.11-0ubuntu0.1+esm9","7:3.4.11-0ubuntu0.1+esm10","7:3.4.11-0ubuntu0.1+esm11","7:3.4.11-0ubuntu0.1+esm12","7:3.4.11-0ubuntu0.1+esm13","7:3.4.11-0ubuntu0.1+esm14"],"ecosystem_specific":{"availability":"Available 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