{"id":"UBUNTU-CVE-2025-68431","details":"libheif is an HEIF and AVIF file format decoder and encoder. Prior to version 1.21.0, a crafted HEIF that exercises the overlay image item path triggers a heap buffer over-read in `HeifPixelImage::overlay()`. The function computes a negative row length (likely from an unclipped overlay rectangle or invalid offsets), which then underflows when converted to `size_t` and is passed to `memcpy`, causing a very large read past the end of the source plane and a crash. Version 1.21.0 contains a patch. As a workaround, avoid decoding images using `iovl` overlay boxes.","modified":"2026-02-28T06:23:16.418605Z","published":"2025-12-29T19:15:00Z","related":["USN-7952-1"],"upstream":["CVE-2025-68431"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-68431"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-68431"},{"type":"REPORT","url":"https://github.com/strukturag/libheif/security/advisories/GHSA-j87x-4gmq-cqfq"},{"type":"REPORT","url":"https://github.com/strukturag/libheif/releases/tag/v1.21.0"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7952-1"}],"affected":[{"package":{"name":"libheif","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libheif@1.1.0-2ubuntu0.1~esm2?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.0-2ubuntu0.1~esm2"}]}],"versions":["1.1.0-2","1.1.0-2ubuntu0.1~esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.1.0-2ubuntu0.1~esm2","binary_name":"libheif-dev"},{"binary_version":"1.1.0-2ubuntu0.1~esm2","binary_name":"libheif-examples"},{"binary_version":"1.1.0-2ubuntu0.1~esm2","binary_name":"libheif1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-68431.json"}},{"package":{"name":"libheif","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/libheif@1.6.1-1ubuntu0.1~esm2?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1-1ubuntu0.1~esm2"}]}],"versions":["1.5.0-1build1","1.5.1-1","1.5.1-1build1","1.6.0-1","1.6.1-1","1.6.1-1build1","1.6.1-1ubuntu0.1~esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.6.1-1ubuntu0.1~esm2","binary_name":"heif-gdk-pixbuf"},{"binary_version":"1.6.1-1ubuntu0.1~esm2","binary_name":"heif-thumbnailer"},{"binary_version":"1.6.1-1ubuntu0.1~esm2","binary_name":"libheif-dev"},{"binary_version":"1.6.1-1ubuntu0.1~esm2","binary_name":"libheif-examples"},{"binary_version":"1.6.1-1ubuntu0.1~esm2","binary_name":"libheif1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-68431.json"}},{"package":{"name":"libheif","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/libheif@1.12.0-2ubuntu0.1~esm2?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.12.0-2ubuntu0.1~esm2"}]}],"versions":["1.11.0-1","1.12.0-2build1","1.12.0-2ubuntu0.1~esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.12.0-2ubuntu0.1~esm2","binary_name":"heif-gdk-pixbuf"},{"binary_version":"1.12.0-2ubuntu0.1~esm2","binary_name":"heif-thumbnailer"},{"binary_version":"1.12.0-2ubuntu0.1~esm2","binary_name":"libheif-dev"},{"binary_version":"1.12.0-2ubuntu0.1~esm2","binary_name":"libheif-examples"},{"binary_version":"1.12.0-2ubuntu0.1~esm2","binary_name":"libheif1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-68431.json"}},{"package":{"name":"libheif","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libheif@1.17.6-1ubuntu4.2?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17.6-1ubuntu4.2"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"heif-gdk-pixbuf"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"heif-thumbnailer"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-dev"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-examples"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-aomdec"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-aomenc"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-dav1d"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-ffmpegdec"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-j2kdec"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-j2kenc"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-jpegdec"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-jpegenc"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-libde265"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-rav1e"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-svtenc"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif-plugin-x265"},{"binary_version":"1.17.6-1ubuntu4.2","binary_name":"libheif1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-68431.json"}},{"package":{"name":"libheif","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/libheif@1.20.2-1ubuntu0.1?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.20.2-1ubuntu0.1"}]}],"versions":["1.19.7-1","1.19.8-1","1.20.2-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"heif-gdk-pixbuf"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"heif-thumbnailer"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"heif-view"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-dev"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-examples"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-aomdec"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-aomenc"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-dav1d"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-ffmpegdec"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-j2kdec"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-j2kenc"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-jpegdec"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-jpegenc"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-kvazaar"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-libde265"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-rav1e"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-svtenc"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugin-x265"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif-plugins-all"},{"binary_version":"1.20.2-1ubuntu0.1","binary_name":"libheif1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-68431.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}