========================================================================== Ubuntu Security Notice USN-8479-1 June 29, 2026
libheif vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 25.10 Summary: Several security issues were fixed in libheif. Software Description: - libheif: An ISO/IEC 23008-12:2017 HEIF and AVIF file format decoder and encoder Details: It was discovered that libheif incorrectly handled certain crafted HEIF files. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-47178) It was discovered that libheif incorrectly validated offsets when decoding certain crafted HEIF files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-49271) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS heif-gdk-pixbuf 1.21.2-3ubuntu0.2 heif-thumbnailer 1.21.2-3ubuntu0.2 heif-view 1.21.2-3ubuntu0.2 libheif-dev 1.21.2-3ubuntu0.2 libheif-plugin-aomdec 1.21.2-3ubuntu0.2 libheif-plugin-aomenc 1.21.2-3ubuntu0.2 libheif-plugin-dav1d 1.21.2-3ubuntu0.2 libheif-plugin-ffmpegdec 1.21.2-3ubuntu0.2 libheif-plugin-j2kdec 1.21.2-3ubuntu0.2 libheif-plugin-j2kenc 1.21.2-3ubuntu0.2 libheif-plugin-jpegdec 1.21.2-3ubuntu0.2 libheif-plugin-jpegenc 1.21.2-3ubuntu0.2 libheif-plugin-kvazaar 1.21.2-3ubuntu0.2 libheif-plugin-libde265 1.21.2-3ubuntu0.2 libheif-plugin-rav1e 1.21.2-3ubuntu0.2 libheif-plugin-svtenc 1.21.2-3ubuntu0.2 libheif-plugin-x265 1.21.2-3ubuntu0.2 libheif-plugins-all 1.21.2-3ubuntu0.2 libheif1 1.21.2-3ubuntu0.2 Ubuntu 25.10 heif-gdk-pixbuf 1.20.2-1ubuntu0.5 heif-thumbnailer 1.20.2-1ubuntu0.5 heif-view 1.20.2-1ubuntu0.5 libheif-dev 1.20.2-1ubuntu0.5 libheif-plugin-aomdec 1.20.2-1ubuntu0.5 libheif-plugin-aomenc 1.20.2-1ubuntu0.5 libheif-plugin-dav1d 1.20.2-1ubuntu0.5 libheif-plugin-ffmpegdec 1.20.2-1ubuntu0.5 libheif-plugin-j2kdec 1.20.2-1ubuntu0.5 libheif-plugin-j2kenc 1.20.2-1ubuntu0.5 libheif-plugin-jpegdec 1.20.2-1ubuntu0.5 libheif-plugin-jpegenc 1.20.2-1ubuntu0.5 libheif-plugin-kvazaar 1.20.2-1ubuntu0.5 libheif-plugin-libde265 1.20.2-1ubuntu0.5 libheif-plugin-rav1e 1.20.2-1ubuntu0.5 libheif-plugin-svtenc 1.20.2-1ubuntu0.5 libheif-plugin-x265 1.20.2-1ubuntu0.5 libheif-plugins-all 1.20.2-1ubuntu0.5 libheif1 1.20.2-1ubuntu0.5 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8479-1 CVE-2026-47178, CVE-2026-49271 Package Information: https://launchpad.net/ubuntu/+source/libheif/1.21.2-3ubuntu0.2 https://launchpad.net/ubuntu/+source/libheif/1.20.2-1ubuntu0.5
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