{"id":"UBUNTU-CVE-2026-47714","details":"libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, the inline mask parsing code in `libheif/region.cc` contains an integer overflow. Both `width` and `height` are `unsigned int` (32-bit) values parsed from the HEIF file. Their product can exceed `UINT32_MAX`, wrapping to a small value before the division by 8. This causes an undersized buffer allocation, leading to out-of-bounds memory access when the mask data is later interpreted as a `width x height` bitmap. Version 1.22.0 patches the issue.","modified":"2026-07-29T10:19:05.706226254Z","published":"2026-07-02T00:00:00Z","related":["USN-8526-1","USN-8526-2"],"upstream":["CVE-2026-47714"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-47714"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-47714"},{"type":"REPORT","url":"https://github.com/strukturag/libheif/security/advisories/GHSA-h4wm-6wwf-qvhx"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8526-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8526-2"}],"affected":[{"package":{"name":"libheif","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libheif?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17.6-1ubuntu4.6"}]}],"versions":["1.16.2-2ubuntu1","1.17.1-1ubuntu2","1.17.1-1ubuntu3","1.17.4-1ubuntu1","1.17.6-1ubuntu1","1.17.6-1ubuntu2","1.17.6-1ubuntu3","1.17.6-1ubuntu4","1.17.6-1ubuntu4.1","1.17.6-1ubuntu4.2","1.17.6-1ubuntu4.3","1.17.6-1ubuntu4.4","1.17.6-1ubuntu4.5"],"ecosystem_specific":{"binaries":[{"binary_version":"1.17.6-1ubuntu4.6","binary_name":"heif-gdk-pixbuf"},{"binary_version":"1.17.6-1ubuntu4.6","binary_name":"heif-thumbnailer"},{"binary_name":"libheif-examples","binary_version":"1.17.6-1ubuntu4.6"},{"binary_version":"1.17.6-1ubuntu4.6","binary_name":"libheif-plugin-aomdec"},{"binary_name":"libheif-plugin-aomenc","binary_version":"1.17.6-1ubuntu4.6"},{"binary_name":"libheif-plugin-dav1d","binary_version":"1.17.6-1ubuntu4.6"},{"binary_version":"1.17.6-1ubuntu4.6","binary_name":"libheif-plugin-ffmpegdec"},{"binary_name":"libheif-plugin-j2kdec","binary_version":"1.17.6-1ubuntu4.6"},{"binary_name":"libheif-plugin-j2kenc","binary_version":"1.17.6-1ubuntu4.6"},{"binary_name":"libheif-plugin-jpegdec","binary_version":"1.17.6-1ubuntu4.6"},{"binary_name":"libheif-plugin-jpegenc","binary_version":"1.17.6-1ubuntu4.6"},{"binary_version":"1.17.6-1ubuntu4.6","binary_name":"libheif-plugin-libde265"},{"binary_name":"libheif-plugin-rav1e","binary_version":"1.17.6-1ubuntu4.6"},{"binary_version":"1.17.6-1ubuntu4.6","binary_name":"libheif-plugin-svtenc"},{"binary_name":"libheif-plugin-x265","binary_version":"1.17.6-1ubuntu4.6"},{"binary_name":"libheif1","binary_version":"1.17.6-1ubuntu4.6"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47714.json"}},{"package":{"name":"libheif","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libheif?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.2-1ubuntu0.6"}]}],"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","1.20.2-1ubuntu0.5"],"ecosystem_specific":{"binaries":[{"binary_name":"heif-gdk-pixbuf","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"heif-thumbnailer","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"heif-view","binary_version":"1.20.2-1ubuntu0.6"},{"binary_version":"1.20.2-1ubuntu0.6","binary_name":"libheif-examples"},{"binary_name":"libheif-plugin-aomdec","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"libheif-plugin-aomenc","binary_version":"1.20.2-1ubuntu0.6"},{"binary_version":"1.20.2-1ubuntu0.6","binary_name":"libheif-plugin-dav1d"},{"binary_name":"libheif-plugin-ffmpegdec","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"libheif-plugin-j2kdec","binary_version":"1.20.2-1ubuntu0.6"},{"binary_version":"1.20.2-1ubuntu0.6","binary_name":"libheif-plugin-j2kenc"},{"binary_name":"libheif-plugin-jpegdec","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"libheif-plugin-jpegenc","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"libheif-plugin-kvazaar","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"libheif-plugin-libde265","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"libheif-plugin-rav1e","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"libheif-plugin-svtenc","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"libheif-plugin-x265","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"libheif-plugins-all","binary_version":"1.20.2-1ubuntu0.6"},{"binary_name":"libheif1","binary_version":"1.20.2-1ubuntu0.6"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47714.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":"1.21.2-3ubuntu0.3"}]}],"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","1.21.2-3ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.21.2-3ubuntu0.3","binary_name":"heif-gdk-pixbuf"},{"binary_name":"heif-thumbnailer","binary_version":"1.21.2-3ubuntu0.3"},{"binary_name":"heif-view","binary_version":"1.21.2-3ubuntu0.3"},{"binary_name":"libheif-examples","binary_version":"1.21.2-3ubuntu0.3"},{"binary_version":"1.21.2-3ubuntu0.3","binary_name":"libheif-plugin-aomdec"},{"binary_version":"1.21.2-3ubuntu0.3","binary_name":"libheif-plugin-aomenc"},{"binary_version":"1.21.2-3ubuntu0.3","binary_name":"libheif-plugin-dav1d"},{"binary_name":"libheif-plugin-ffmpegdec","binary_version":"1.21.2-3ubuntu0.3"},{"binary_name":"libheif-plugin-j2kdec","binary_version":"1.21.2-3ubuntu0.3"},{"binary_name":"libheif-plugin-j2kenc","binary_version":"1.21.2-3ubuntu0.3"},{"binary_version":"1.21.2-3ubuntu0.3","binary_name":"libheif-plugin-jpegdec"},{"binary_name":"libheif-plugin-jpegenc","binary_version":"1.21.2-3ubuntu0.3"},{"binary_name":"libheif-plugin-kvazaar","binary_version":"1.21.2-3ubuntu0.3"},{"binary_name":"libheif-plugin-libde265","binary_version":"1.21.2-3ubuntu0.3"},{"binary_name":"libheif-plugin-rav1e","binary_version":"1.21.2-3ubuntu0.3"},{"binary_version":"1.21.2-3ubuntu0.3","binary_name":"libheif-plugin-svtenc"},{"binary_name":"libheif-plugin-x265","binary_version":"1.21.2-3ubuntu0.3"},{"binary_name":"libheif-plugins-all","binary_version":"1.21.2-3ubuntu0.3"},{"binary_version":"1.21.2-3ubuntu0.3","binary_name":"libheif1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47714.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":"Ubuntu","score":"medium"}]}