[USN-8683-1] libheif vulnerabilities

[noreply+usn-bot at canonical.com]

==========================================================================
Ubuntu Security Notice USN-8683-1
August 26, 2026

libheif vulnerabilities
==========================================================================

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

- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 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:

Feng Ning discovered that libheif incorrectly handled certain image
transforms. A remote attacker could possibly use this issue to cause a
denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu
20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2026-62289)

Ali Firas discovered that libheif incorrectly handled certain images. An
attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. This issue only affected Ubuntu 24.04 LTS.
(CVE-2026-62291)

Update instructions:

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

Ubuntu 24.04 LTS
  heif-gdk-pixbuf                 1.17.6-1ubuntu4.8
  heif-thumbnailer                1.17.6-1ubuntu4.8
  libheif-dev                     1.17.6-1ubuntu4.8
  libheif-plugin-aomdec           1.17.6-1ubuntu4.8
  libheif-plugin-aomenc           1.17.6-1ubuntu4.8
  libheif-plugin-dav1d            1.17.6-1ubuntu4.8
  libheif-plugin-ffmpegdec        1.17.6-1ubuntu4.8
  libheif-plugin-j2kdec           1.17.6-1ubuntu4.8
  libheif-plugin-j2kenc           1.17.6-1ubuntu4.8
  libheif-plugin-jpegdec          1.17.6-1ubuntu4.8
  libheif-plugin-jpegenc          1.17.6-1ubuntu4.8
  libheif-plugin-libde265         1.17.6-1ubuntu4.8
  libheif-plugin-rav1e            1.17.6-1ubuntu4.8
  libheif-plugin-svtenc           1.17.6-1ubuntu4.8
  libheif-plugin-x265             1.17.6-1ubuntu4.8
  libheif1                        1.17.6-1ubuntu4.8

Ubuntu 22.04 LTS
  heif-gdk-pixbuf                 1.12.0-2ubuntu0.1~esm4
                                  Available with Ubuntu Pro
  heif-thumbnailer                1.12.0-2ubuntu0.1~esm4
                                  Available with Ubuntu Pro
  libheif-dev                     1.12.0-2ubuntu0.1~esm4
                                  Available with Ubuntu Pro
  libheif1                        1.12.0-2ubuntu0.1~esm4
                                  Available with Ubuntu Pro

Ubuntu 20.04 LTS
  heif-gdk-pixbuf                 1.6.1-1ubuntu0.1~esm4
                                  Available with Ubuntu Pro
  heif-thumbnailer                1.6.1-1ubuntu0.1~esm4
                                  Available with Ubuntu Pro
  libheif-dev                     1.6.1-1ubuntu0.1~esm4
                                  Available with Ubuntu Pro
  libheif1                        1.6.1-1ubuntu0.1~esm4
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  libheif-dev                     1.1.0-2ubuntu0.1~esm4
                                  Available with Ubuntu Pro
  libheif1                        1.1.0-2ubuntu0.1~esm4
                                  Available with Ubuntu Pro

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

References:
  https://ubuntu.com/security/notices/USN-8683-1
  CVE-2026-62289, CVE-2026-62291

Package Information:
  https://launchpad.net/ubuntu/+source/libheif/1.17.6-1ubuntu4.8
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