USN-8479-1: libheif vulnerabilities

Packages

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)

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

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

Ubuntu Release	Package Version
26.04 LTS resolute	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
25.10 questing	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

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