{"id":"UBUNTU-CVE-2015-6820","details":"The ff_sbr_apply function in libavcodec/aacsbr.c in FFmpeg before 2.7.2 does not check for a matching AAC frame syntax element before proceeding with Spectral Band Replication calculations, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted AAC data.","modified":"2026-01-30T02:30:54.812595Z","published":"2015-09-05T00:00:00Z","related":["USN-2944-1"],"upstream":["CVE-2015-6820"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-6820"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2944-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-6820"}],"affected":[{"package":{"name":"libav","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libav@6:9.20-0ubuntu0.14.04.1+esm1?arch=source&distro=esm-infra-legacy/trusty"},"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-dev","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-dev","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-dev","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-dev","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":"libavresample-dev","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-dev","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-dev","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/2015/UBUNTU-CVE-2015-6820.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"medium"}]}