{"id":"UBUNTU-CVE-2017-16840","details":"The VC-2 Video Compression encoder in FFmpeg 3.0 and 3.4 allows remote attackers to cause a denial of service (out-of-bounds read) because of incorrect buffer padding for non-Haar wavelets, related to libavcodec/vc2enc.c and libavcodec/vc2enc_dwt.c.","modified":"2025-07-16T08:13:05.002621Z","published":"2017-11-21T08:29:00Z","withdrawn":"2025-07-18T16:44:15Z","upstream":["CVE-2017-16840"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-16840"},{"type":"REPORT","url":"http://git.videolan.org/?p=ffmpeg.git;a=commit;h=a94cb36ab2ad99d3a1331c9f91831ef593d94f74"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-16840"}],"affected":[{"package":{"name":"ffmpeg","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ffmpeg@7:3.4.1-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7:3.4.1-1"}]}],"versions":["7:3.3.4-2","7:3.3.4-2build3","7:3.4-2ubuntu2","7:3.4-4","7:3.4-4build1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"7:3.4.1-1","binary_name":"ffmpeg"},{"binary_version":"7:3.4.1-1","binary_name":"ffmpeg-dbgsym"},{"binary_version":"7:3.4.1-1","binary_name":"ffmpeg-doc"},{"binary_version":"7:3.4.1-1","binary_name":"libav-tools"},{"binary_version":"7:3.4.1-1","binary_name":"libavcodec-dev"},{"binary_version":"7:3.4.1-1","binary_name":"libavcodec-extra"},{"binary_version":"7:3.4.1-1","binary_name":"libavcodec-extra57"},{"binary_version":"7:3.4.1-1","binary_name":"libavcodec-extra57-dbgsym"},{"binary_version":"7:3.4.1-1","binary_name":"libavcodec57"},{"binary_version":"7:3.4.1-1","binary_name":"libavcodec57-dbgsym"},{"binary_version":"7:3.4.1-1","binary_name":"libavdevice-dev"},{"binary_version":"7:3.4.1-1","binary_name":"libavdevice57"},{"binary_version":"7:3.4.1-1","binary_name":"libavdevice57-dbgsym"},{"binary_version":"7:3.4.1-1","binary_name":"libavfilter-dev"},{"binary_version":"7:3.4.1-1","binary_name":"libavfilter-extra"},{"binary_version":"7:3.4.1-1","binary_name":"libavfilter-extra6"},{"binary_version":"7:3.4.1-1","binary_name":"libavfilter-extra6-dbgsym"},{"binary_version":"7:3.4.1-1","binary_name":"libavfilter6"},{"binary_version":"7:3.4.1-1","binary_name":"libavfilter6-dbgsym"},{"binary_version":"7:3.4.1-1","binary_name":"libavformat-dev"},{"binary_version":"7:3.4.1-1","binary_name":"libavformat57"},{"binary_version":"7:3.4.1-1","binary_name":"libavformat57-dbgsym"},{"binary_version":"7:3.4.1-1","binary_name":"libavresample-dev"},{"binary_version":"7:3.4.1-1","binary_name":"libavresample3"},{"binary_version":"7:3.4.1-1","binary_name":"libavresample3-dbgsym"},{"binary_version":"7:3.4.1-1","binary_name":"libavutil-dev"},{"binary_version":"7:3.4.1-1","binary_name":"libavutil55"},{"binary_version":"7:3.4.1-1","binary_name":"libavutil55-dbgsym"},{"binary_version":"7:3.4.1-1","binary_name":"libpostproc-dev"},{"binary_version":"7:3.4.1-1","binary_name":"libpostproc54"},{"binary_version":"7:3.4.1-1","binary_name":"libpostproc54-dbgsym"},{"binary_version":"7:3.4.1-1","binary_name":"libswresample-dev"},{"binary_version":"7:3.4.1-1","binary_name":"libswresample2"},{"binary_version":"7:3.4.1-1","binary_name":"libswresample2-dbgsym"},{"binary_version":"7:3.4.1-1","binary_name":"libswscale-dev"},{"binary_version":"7:3.4.1-1","binary_name":"libswscale4"},{"binary_version":"7:3.4.1-1","binary_name":"libswscale4-dbgsym"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-16840.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}