SUSE-SU-2026:4276-1: important: Security update for libheif

SLE-UPDATES null at suse.de
Mon Sep 21 16:30:32 UTC 2026 

# Security update for libheif

Announcement ID: SUSE-SU-2026:4276-1  
Release Date: 2026-09-21T09:21:15Z  
Rating: important  
References:

  * bsc#1279443
  * bsc#1279444
  * bsc#1279445
  * bsc#1279446
  * bsc#1279447
  * bsc#1279448
  * bsc#1279449
  * bsc#1280001
  * bsc#1280002
  * jsc#PED-16355

  
Cross-References:

  * CVE-2026-84383
  * CVE-2026-84384
  * CVE-2026-84444
  * CVE-2026-84446
  * CVE-2026-84447
  * CVE-2026-84448
  * CVE-2026-84450
  * CVE-2026-84451

  
CVSS scores:

  * CVE-2026-84383 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-84383 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-84383 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-84384 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-84384 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-84384 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-84444 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-84444 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-84444 ( NVD ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-84446 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-84446 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-84446 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-84447 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-84447 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-84447 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-84448 ( SUSE ):  7.0
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-84448 ( SUSE ):  6.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-84448 ( NVD ):  4.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
  * CVE-2026-84450 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-84450 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-84450 ( NVD ):  4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
  * CVE-2026-84451 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-84451 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-84451 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

  
Affected Products:

  * Desktop Applications Module 15-SP7
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7
  * SUSE Package Hub 15 15-SP7

  
  
An update that solves eight vulnerabilities, contains one feature and has one
security fix can now be installed.

## Description:

This update for libheif fixes the following issues:

  * CVE-2026-84383: Heap buffer overflow in scale_nearest_neighbor() via
    duplicate alpha planes from nested iden/auxl items (bsc#1279443).
  * CVE-2026-84384: brotli/zlib decompression paths lack output-size limits,
    allowing decompression-bomb OOM/DoS (bsc#1279445).
  * CVE-2026-84444: Out-of-bounds write in the unci encoder (bsc#1279448).
  * CVE-2026-84446: Sequence decode timing-table initialization allows non-
    terminating loops and unbounded memory, bypassing max_sequence_frames
    (bsc#1279447).
  * CVE-2026-84447: Derived-image indirect reference chains and tiled offsets
    bypass decode caching and MemoryHandle limits, causing CPU/memory
    amplification DoS (bsc#1279446).
  * CVE-2026-84448: Heap out-of-bounds read in the inline-mask region API
    (bsc#1279449).
  * CVE-2026-84450: image item with `clap` property and an ispe declaring a
    dimension greater than `INT32_MAX + 1` can lead to a crash via an abort
    (bsc#1280002).
  * CVE-2026-84451: crafted HEIF file advertising a 4096 x 4096 uncompressed
    tile grid can cause an out-of-bounds read due to an integer overflow
    (bsc#1280001).
  * Out-of-bounds read and write in derived-item and pixel-plane handling
    (bsc#1279444).

Changes for libheif:

  * Update to version 1.23.4 (jsc#PED-16355)

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * Desktop Applications Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP7-2026-4276

  * SUSE Package Hub 15 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-4276

## Package List:

  * Desktop Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * libheif-dav1d-1.23.4-150700.3.21.1
    * libheif-aom-1.23.4-150700.3.21.1
    * libheif-debugsource-1.23.4-150700.3.21.1
    * libheif-jpeg-1.23.4-150700.3.21.1
    * libheif1-debuginfo-1.23.4-150700.3.21.1
    * libheif-dav1d-debuginfo-1.23.4-150700.3.21.1
    * libheif-jpeg-debuginfo-1.23.4-150700.3.21.1
    * libheif-rav1e-debuginfo-1.23.4-150700.3.21.1
    * libheif-rav1e-1.23.4-150700.3.21.1
    * libheif-aom-debuginfo-1.23.4-150700.3.21.1
    * libheif1-1.23.4-150700.3.21.1
  * SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x x86_64)
    * libheif-debugsource-1.23.4-150700.3.21.1
    * libheif-devel-1.23.4-150700.3.21.1
    * gdk-pixbuf-loader-libheif-debuginfo-1.23.4-150700.3.21.1
    * gdk-pixbuf-loader-libheif-1.23.4-150700.3.21.1
    * libheif-ffmpeg-debuginfo-1.23.4-150700.3.21.1
    * libheif-ffmpeg-1.23.4-150700.3.21.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-84383.html
  * https://www.suse.com/security/cve/CVE-2026-84384.html
  * https://www.suse.com/security/cve/CVE-2026-84444.html
  * https://www.suse.com/security/cve/CVE-2026-84446.html
  * https://www.suse.com/security/cve/CVE-2026-84447.html
  * https://www.suse.com/security/cve/CVE-2026-84448.html
  * https://www.suse.com/security/cve/CVE-2026-84450.html
  * https://www.suse.com/security/cve/CVE-2026-84451.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1279443
  * https://bugzilla.suse.com/show_bug.cgi?id=1279444
  * https://bugzilla.suse.com/show_bug.cgi?id=1279445
  * https://bugzilla.suse.com/show_bug.cgi?id=1279446
  * https://bugzilla.suse.com/show_bug.cgi?id=1279447
  * https://bugzilla.suse.com/show_bug.cgi?id=1279448
  * https://bugzilla.suse.com/show_bug.cgi?id=1279449
  * https://bugzilla.suse.com/show_bug.cgi?id=1280001
  * https://bugzilla.suse.com/show_bug.cgi?id=1280002
  * https://jira.suse.com/browse/PED-16355

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