Home / mailings

PDF

[USN-8649-1] libheif vulnerabilities

Posted on 19 August 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8649-1
August 19, 2026

libheif vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS
- Ubuntu 24.04 LTS

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 had an integer underflow in the Fraction
constructor when a clap transform was applied twice. An attacker could
possibly use this issue to cause libheif to crash, resulting in a denial of
service. (CVE-2026-62289)

It was discovered that libheif had an out-of-bounds read in uncompressed
tile range slicing. An attacker could possibly use this issue to cause
libheif to crash, resulting in a denial of service. This issue only
affected Ubuntu 25.10. (CVE-2026-62292)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 26.04 LTS
heif-gdk-pixbuf 1.21.2-3ubuntu0.4
heif-thumbnailer 1.21.2-3ubuntu0.4
heif-view 1.21.2-3ubuntu0.4
libheif-plugin-aomdec 1.21.2-3ubuntu0.4
libheif-plugin-aomenc 1.21.2-3ubuntu0.4
libheif-plugin-dav1d 1.21.2-3ubuntu0.4
libheif-plugin-ffmpegdec 1.21.2-3ubuntu0.4
libheif-plugin-j2kdec 1.21.2-3ubuntu0.4
libheif-plugin-j2kenc 1.21.2-3ubuntu0.4
libheif-plugin-jpegdec 1.21.2-3ubuntu0.4
libheif-plugin-jpegenc 1.21.2-3ubuntu0.4
libheif-plugin-kvazaar 1.21.2-3ubuntu0.4
libheif-plugin-libde265 1.21.2-3ubuntu0.4
libheif-plugin-rav1e 1.21.2-3ubuntu0.4
libheif-plugin-svtenc 1.21.2-3ubuntu0.4
libheif-plugin-x265 1.21.2-3ubuntu0.4
libheif-plugins-all 1.21.2-3ubuntu0.4
libheif1 1.21.2-3ubuntu0.4

Ubuntu 24.04 LTS
heif-gdk-pixbuf 1.17.6-1ubuntu4.7
heif-thumbnailer 1.17.6-1ubuntu4.7
libheif-plugin-aomdec 1.17.6-1ubuntu4.7
libheif-plugin-aomenc 1.17.6-1ubuntu4.7
libheif-plugin-dav1d 1.17.6-1ubuntu4.7
libheif-plugin-ffmpegdec 1.17.6-1ubuntu4.7
libheif-plugin-j2kdec 1.17.6-1ubuntu4.7
libheif-plugin-j2kenc 1.17.6-1ubuntu4.7
libheif-plugin-jpegdec 1.17.6-1ubuntu4.7
libheif-plugin-jpegenc 1.17.6-1ubuntu4.7
libheif-plugin-libde265 1.17.6-1ubuntu4.7
libheif-plugin-rav1e 1.17.6-1ubuntu4.7
libheif-plugin-svtenc 1.17.6-1ubuntu4.7
libheif-plugin-x265 1.17.6-1ubuntu4.7
libheif1 1.17.6-1ubuntu4.7

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

References:
https://ubuntu.com/security/notices/USN-8649-1
CVE-2026-62289, CVE-2026-62292

Package Information:
https://launchpad.net/ubuntu/+source/libheif/1.21.2-3ubuntu0.4
https://launchpad.net/ubuntu/+source/libheif/1.17.6-1ubuntu4.7

--===============4471467143224238832==Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature

 

TOP