<div class="container">
<h1>Security update for libheif</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:4276-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-09-21T09:21:15Z</td>
</tr>
<tr>
<th>Rating:</th>
<td>important</td>
</tr>
<tr>
<th>References:</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279443">bsc#1279443</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279444">bsc#1279444</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279445">bsc#1279445</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279446">bsc#1279446</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279447">bsc#1279447</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279448">bsc#1279448</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279449">bsc#1279449</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1280001">bsc#1280001</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1280002">bsc#1280002</a>
</li>
<li style="display: inline;">
<a href="https://jira.suse.com/browse/PED-16355">jsc#PED-16355</a>
</li>
</ul>
</td>
</tr>
<tr>
<th>
Cross-References:
</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-84383.html">CVE-2026-84383</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-84384.html">CVE-2026-84384</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-84444.html">CVE-2026-84444</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-84446.html">CVE-2026-84446</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-84447.html">CVE-2026-84447</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-84448.html">CVE-2026-84448</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-84450.html">CVE-2026-84450</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-84451.html">CVE-2026-84451</a>
</li>
</ul>
</td>
</tr>
<tr>
<th>CVSS scores:</th>
<td>
<ul class="list-group">
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84383</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">9.2</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84383</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84383</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84384</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84384</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84384</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84444</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">9.2</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84444</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.1</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84444</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.4</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84446</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84446</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84446</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84447</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84447</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84447</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84448</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.0</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84448</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84448</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">4.0</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84450</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84450</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84450</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">4.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84451</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">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</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84451</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-84451</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">Desktop Applications Module 15-SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP7</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP7</li>
<li class="list-group-item">SUSE Package Hub 15 15-SP7</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves eight vulnerabilities, contains one feature and has one security fix can now be installed.</p>
<h2>Description:</h2>
<p>This update for libheif fixes the following issues:</p>
<ul>
<li>CVE-2026-84383: Heap buffer overflow in scale_nearest_neighbor() via duplicate alpha planes from nested iden/auxl
items (bsc#1279443).</li>
<li>CVE-2026-84384: brotli/zlib decompression paths lack output-size limits, allowing decompression-bomb OOM/DoS
(bsc#1279445).</li>
<li>CVE-2026-84444: Out-of-bounds write in the unci encoder (bsc#1279448).</li>
<li>CVE-2026-84446: Sequence decode timing-table initialization allows non-terminating loops and unbounded memory,
bypassing max_sequence_frames (bsc#1279447).</li>
<li>CVE-2026-84447: Derived-image indirect reference chains and tiled offsets bypass decode caching and MemoryHandle
limits, causing CPU/memory amplification DoS (bsc#1279446).</li>
<li>CVE-2026-84448: Heap out-of-bounds read in the inline-mask region API (bsc#1279449).</li>
<li>CVE-2026-84450: image item with <code>clap</code> property and an ispe declaring a dimension greater than <code>INT32_MAX + 1</code> can
lead to a crash via an abort (bsc#1280002).</li>
<li>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).</li>
<li>Out-of-bounds read and write in derived-item and pixel-plane handling (bsc#1279444).</li>
</ul>
<p>Changes for libheif:</p>
<ul>
<li>Update to version 1.23.4 (jsc#PED-16355)</li>
</ul>
<h2>Patch Instructions:</h2>
<p>
To install this SUSE update use the SUSE recommended
installation methods like YaST online_update or "zypper patch".<br/>
Alternatively you can run the command listed for your product:
</p>
<ul class="list-group">
<li class="list-group-item">
Desktop Applications Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP7-2026-4276</code>
</li>
<li class="list-group-item">
SUSE Package Hub 15 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-4276</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
Desktop Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>libheif-dav1d-1.23.4-150700.3.21.1</li>
<li>libheif-aom-1.23.4-150700.3.21.1</li>
<li>libheif-debugsource-1.23.4-150700.3.21.1</li>
<li>libheif-jpeg-1.23.4-150700.3.21.1</li>
<li>libheif1-debuginfo-1.23.4-150700.3.21.1</li>
<li>libheif-dav1d-debuginfo-1.23.4-150700.3.21.1</li>
<li>libheif-jpeg-debuginfo-1.23.4-150700.3.21.1</li>
<li>libheif-rav1e-debuginfo-1.23.4-150700.3.21.1</li>
<li>libheif-rav1e-1.23.4-150700.3.21.1</li>
<li>libheif-aom-debuginfo-1.23.4-150700.3.21.1</li>
<li>libheif1-1.23.4-150700.3.21.1</li>
</ul>
</li>
<li>
SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x x86_64)
<ul>
<li>libheif-debugsource-1.23.4-150700.3.21.1</li>
<li>libheif-devel-1.23.4-150700.3.21.1</li>
<li>gdk-pixbuf-loader-libheif-debuginfo-1.23.4-150700.3.21.1</li>
<li>gdk-pixbuf-loader-libheif-1.23.4-150700.3.21.1</li>
<li>libheif-ffmpeg-debuginfo-1.23.4-150700.3.21.1</li>
<li>libheif-ffmpeg-1.23.4-150700.3.21.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-84383.html">https://www.suse.com/security/cve/CVE-2026-84383.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-84384.html">https://www.suse.com/security/cve/CVE-2026-84384.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-84444.html">https://www.suse.com/security/cve/CVE-2026-84444.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-84446.html">https://www.suse.com/security/cve/CVE-2026-84446.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-84447.html">https://www.suse.com/security/cve/CVE-2026-84447.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-84448.html">https://www.suse.com/security/cve/CVE-2026-84448.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-84450.html">https://www.suse.com/security/cve/CVE-2026-84450.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-84451.html">https://www.suse.com/security/cve/CVE-2026-84451.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279443">https://bugzilla.suse.com/show_bug.cgi?id=1279443</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279444">https://bugzilla.suse.com/show_bug.cgi?id=1279444</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279445">https://bugzilla.suse.com/show_bug.cgi?id=1279445</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279446">https://bugzilla.suse.com/show_bug.cgi?id=1279446</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279447">https://bugzilla.suse.com/show_bug.cgi?id=1279447</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279448">https://bugzilla.suse.com/show_bug.cgi?id=1279448</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1279449">https://bugzilla.suse.com/show_bug.cgi?id=1279449</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1280001">https://bugzilla.suse.com/show_bug.cgi?id=1280001</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1280002">https://bugzilla.suse.com/show_bug.cgi?id=1280002</a>
</li>
<li>
<a href="https://jira.suse.com/browse/PED-16355">https://jira.suse.com/browse/PED-16355</a>
</li>
</ul>
</div>