{"id":"UBUNTU-CVE-2023-6603","details":"A flaw was found in FFmpeg's HLS playlist parsing. This vulnerability allows a denial of service via a maliciously crafted HLS playlist that triggers a null pointer dereference during initialization.","modified":"2026-05-20T16:08:43.459083329Z","published":"2024-12-31T15:15:00Z","related":["USN-7830-1","USN-7890-1"],"upstream":["CVE-2023-6603"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-6603"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-6603"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2334335"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7830-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7890-1"}],"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_name":"libavcodec-extra-54","binary_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"binary_name":"libavcodec54","binary_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"binary_name":"libavdevice-extra-53","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_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"binary_name":"libavfilter3","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_version":"6:9.20-0ubuntu0.14.04.1+esm1"},{"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/2023/UBUNTU-CVE-2023-6603.json"}},{"package":{"name":"ffmpeg","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:2.8.17-0ubuntu0.1+esm13"}]}],"versions":["7:2.7.2-1build1","7:2.8.1-1ubuntu1","7:2.8.2-1ubuntu1","7:2.8.3-1","7:2.8.4-1","7:2.8.4-1ubuntu1","7:2.8.4-1ubuntu2","7:2.8.4-1ubuntu3","7:2.8.4-1ubuntu4","7:2.8.6-1ubuntu1","7:2.8.6-1ubuntu2","7:2.8.8-0ubuntu0.16.04.1","7:2.8.10-0ubuntu0.16.04.1","7:2.8.11-0ubuntu0.16.04.1","7:2.8.14-0ubuntu0.16.04.1","7:2.8.15-0ubuntu0.16.04.1","7:2.8.15-0ubuntu0.16.04.1+esm1","7:2.8.17-0ubuntu0.1","7:2.8.17-0ubuntu0.1+esm1","7:2.8.17-0ubuntu0.1+esm2","7:2.8.17-0ubuntu0.1+esm3","7:2.8.17-0ubuntu0.1+esm4","7:2.8.17-0ubuntu0.1+esm5","7:2.8.17-0ubuntu0.1+esm6","7:2.8.17-0ubuntu0.1+esm7","7:2.8.17-0ubuntu0.1+esm8","7:2.8.17-0ubuntu0.1+esm9","7:2.8.17-0ubuntu0.1+esm10","7:2.8.17-0ubuntu0.1+esm11","7:2.8.17-0ubuntu0.1+esm12"],"ecosystem_specific":{"binaries":[{"binary_name":"ffmpeg","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libav-tools","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libavcodec-extra","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libavcodec-ffmpeg-extra56","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libavcodec-ffmpeg56","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libavdevice-ffmpeg56","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libavfilter-ffmpeg5","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libavformat-ffmpeg56","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libavresample-ffmpeg2","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libavutil-ffmpeg54","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libpostproc-ffmpeg53","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libswresample-ffmpeg1","binary_version":"7:2.8.17-0ubuntu0.1+esm13"},{"binary_name":"libswscale-ffmpeg3","binary_version":"7:2.8.17-0ubuntu0.1+esm13"}],"availability":"Available with Ubuntu Pro: 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