{"id":"UBUNTU-CVE-2026-47178","details":"libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file (uncompressed `unci` codec, tiled, component-interleaved, 4:2:0) triggers a heap out-of-bounds write in libheif's uncompressed tile decoder. The write overwrites the C++ vtable pointer of an adjacent `unc_decoder_component_interleave` object; the next virtual call dispatches to an attacker-chosen address. Version 1.22.0 patches the issue.","modified":"2026-07-29T10:19:05.722220912Z","published":"2026-06-18T00:00:00Z","related":["USN-8479-1"],"upstream":["CVE-2026-47178"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-47178"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-47178"},{"type":"REPORT","url":"https://project-zero.issues.chromium.org/issues/507396184"},{"type":"REPORT","url":"https://github.com/strukturag/libheif/security/advisories/GHSA-5x55-x5pf-9c6g"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8479-1"}],"affected":[{"package":{"name":"libheif","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libheif?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.2-1ubuntu0.5"}]}],"versions":["1.19.7-1","1.19.8-1","1.20.2-1","1.20.2-1ubuntu0.1","1.20.2-1ubuntu0.3","1.20.2-1ubuntu0.4"],"ecosystem_specific":{"binaries":[{"binary_name":"heif-gdk-pixbuf","binary_version":"1.20.2-1ubuntu0.5"},{"binary_name":"heif-thumbnailer","binary_version":"1.20.2-1ubuntu0.5"},{"binary_version":"1.20.2-1ubuntu0.5","binary_name":"heif-view"},{"binary_name":"libheif-examples","binary_version":"1.20.2-1ubuntu0.5"},{"binary_version":"1.20.2-1ubuntu0.5","binary_name":"libheif-plugin-aomdec"},{"binary_name":"libheif-plugin-aomenc","binary_version":"1.20.2-1ubuntu0.5"},{"binary_name":"libheif-plugin-dav1d","binary_version":"1.20.2-1ubuntu0.5"},{"binary_name":"libheif-plugin-ffmpegdec","binary_version":"1.20.2-1ubuntu0.5"},{"binary_version":"1.20.2-1ubuntu0.5","binary_name":"libheif-plugin-j2kdec"},{"binary_version":"1.20.2-1ubuntu0.5","binary_name":"libheif-plugin-j2kenc"},{"binary_version":"1.20.2-1ubuntu0.5","binary_name":"libheif-plugin-jpegdec"},{"binary_name":"libheif-plugin-jpegenc","binary_version":"1.20.2-1ubuntu0.5"},{"binary_version":"1.20.2-1ubuntu0.5","binary_name":"libheif-plugin-kvazaar"},{"binary_version":"1.20.2-1ubuntu0.5","binary_name":"libheif-plugin-libde265"},{"binary_name":"libheif-plugin-rav1e","binary_version":"1.20.2-1ubuntu0.5"},{"binary_version":"1.20.2-1ubuntu0.5","binary_name":"libheif-plugin-svtenc"},{"binary_version":"1.20.2-1ubuntu0.5","binary_name":"libheif-plugin-x265"},{"binary_name":"libheif-plugins-all","binary_version":"1.20.2-1ubuntu0.5"},{"binary_version":"1.20.2-1ubuntu0.5","binary_name":"libheif1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47178.json"}},{"package":{"name":"libheif","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libheif?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21.2-3ubuntu0.2"}]}],"versions":["1.20.2-1","1.20.2-2","1.20.2-2build1","1.20.2-2build2","1.20.2-2ubuntu1","1.21.2-1","1.21.2-3","1.21.2-3ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"heif-gdk-pixbuf","binary_version":"1.21.2-3ubuntu0.2"},{"binary_name":"heif-thumbnailer","binary_version":"1.21.2-3ubuntu0.2"},{"binary_name":"heif-view","binary_version":"1.21.2-3ubuntu0.2"},{"binary_version":"1.21.2-3ubuntu0.2","binary_name":"libheif-examples"},{"binary_name":"libheif-plugin-aomdec","binary_version":"1.21.2-3ubuntu0.2"},{"binary_name":"libheif-plugin-aomenc","binary_version":"1.21.2-3ubuntu0.2"},{"binary_name":"libheif-plugin-dav1d","binary_version":"1.21.2-3ubuntu0.2"},{"binary_name":"libheif-plugin-ffmpegdec","binary_version":"1.21.2-3ubuntu0.2"},{"binary_name":"libheif-plugin-j2kdec","binary_version":"1.21.2-3ubuntu0.2"},{"binary_version":"1.21.2-3ubuntu0.2","binary_name":"libheif-plugin-j2kenc"},{"binary_version":"1.21.2-3ubuntu0.2","binary_name":"libheif-plugin-jpegdec"},{"binary_name":"libheif-plugin-jpegenc","binary_version":"1.21.2-3ubuntu0.2"},{"binary_version":"1.21.2-3ubuntu0.2","binary_name":"libheif-plugin-kvazaar"},{"binary_version":"1.21.2-3ubuntu0.2","binary_name":"libheif-plugin-libde265"},{"binary_name":"libheif-plugin-rav1e","binary_version":"1.21.2-3ubuntu0.2"},{"binary_version":"1.21.2-3ubuntu0.2","binary_name":"libheif-plugin-svtenc"},{"binary_version":"1.21.2-3ubuntu0.2","binary_name":"libheif-plugin-x265"},{"binary_name":"libheif-plugins-all","binary_version":"1.21.2-3ubuntu0.2"},{"binary_name":"libheif1","binary_version":"1.21.2-3ubuntu0.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47178.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}