<div class="container">
<h1>Security update for xen</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:2329-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-06-10T07:39:36Z</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=1266952">bsc#1266952</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1266953">bsc#1266953</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1266955">bsc#1266955</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-2026-42487.html">CVE-2026-42487</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-42488.html">CVE-2026-42488</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-42489.html">CVE-2026-42489</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-42490.html">CVE-2026-42490</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-2026-42487</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.8</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42487</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42488</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">8.7</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42488</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42489</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.8</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42489</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42490</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.8</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-42490</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.1</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:H/UI:N/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">openSUSE Leap 15.6</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP6 LTSS</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP6</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves four vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for xen fixes the following issues:</p>
<ul>
<li>CVE-2026-42487: x86 HVM I/O port list traversal (bsc#1266952).</li>
<li>CVE-2026-42488: x86: mismatched mapcache metadata (bsc#1266955).</li>
<li>CVE-2026-42489,CVE-2026-42490: domctl lock open to abuse (bsc#1266953).</li>
</ul>
<h2>Special Instructions and Notes:</h2>
<ul>
<li>Please reboot the system after installing this update.</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">
openSUSE Leap 15.6
<br/>
<code>zypper in -t patch SUSE-2026-2329=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 15 SP6 LTSS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2329=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP Applications 15 SP6
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2329=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
openSUSE Leap 15.6 (aarch64 x86_64 i586)
<ul>
<li>xen-devel-4.18.5_18-150600.3.50.1</li>
<li>xen-libs-debuginfo-4.18.5_18-150600.3.50.1</li>
<li>xen-libs-4.18.5_18-150600.3.50.1</li>
<li>xen-tools-domU-4.18.5_18-150600.3.50.1</li>
<li>xen-debugsource-4.18.5_18-150600.3.50.1</li>
<li>xen-tools-domU-debuginfo-4.18.5_18-150600.3.50.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (x86_64)
<ul>
<li>xen-libs-32bit-4.18.5_18-150600.3.50.1</li>
<li>xen-libs-32bit-debuginfo-4.18.5_18-150600.3.50.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (aarch64 x86_64)
<ul>
<li>xen-tools-4.18.5_18-150600.3.50.1</li>
<li>xen-4.18.5_18-150600.3.50.1</li>
<li>xen-doc-html-4.18.5_18-150600.3.50.1</li>
<li>xen-tools-debuginfo-4.18.5_18-150600.3.50.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (noarch)
<ul>
<li>xen-tools-xendomains-wait-disk-4.18.5_18-150600.3.50.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (aarch64_ilp32)
<ul>
<li>xen-libs-64bit-4.18.5_18-150600.3.50.1</li>
<li>xen-libs-64bit-debuginfo-4.18.5_18-150600.3.50.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP6 LTSS (x86_64)
<ul>
<li>xen-devel-4.18.5_18-150600.3.50.1</li>
<li>xen-tools-debuginfo-4.18.5_18-150600.3.50.1</li>
<li>xen-tools-4.18.5_18-150600.3.50.1</li>
<li>xen-tools-domU-debuginfo-4.18.5_18-150600.3.50.1</li>
<li>xen-libs-debuginfo-4.18.5_18-150600.3.50.1</li>
<li>xen-libs-4.18.5_18-150600.3.50.1</li>
<li>xen-tools-domU-4.18.5_18-150600.3.50.1</li>
<li>xen-debugsource-4.18.5_18-150600.3.50.1</li>
<li>xen-4.18.5_18-150600.3.50.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
<ul>
<li>xen-tools-xendomains-wait-disk-4.18.5_18-150600.3.50.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP6 (x86_64)
<ul>
<li>xen-devel-4.18.5_18-150600.3.50.1</li>
<li>xen-tools-debuginfo-4.18.5_18-150600.3.50.1</li>
<li>xen-tools-4.18.5_18-150600.3.50.1</li>
<li>xen-tools-domU-debuginfo-4.18.5_18-150600.3.50.1</li>
<li>xen-libs-debuginfo-4.18.5_18-150600.3.50.1</li>
<li>xen-libs-4.18.5_18-150600.3.50.1</li>
<li>xen-tools-domU-4.18.5_18-150600.3.50.1</li>
<li>xen-debugsource-4.18.5_18-150600.3.50.1</li>
<li>xen-4.18.5_18-150600.3.50.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
<ul>
<li>xen-tools-xendomains-wait-disk-4.18.5_18-150600.3.50.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-42487.html">https://www.suse.com/security/cve/CVE-2026-42487.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-42488.html">https://www.suse.com/security/cve/CVE-2026-42488.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-42489.html">https://www.suse.com/security/cve/CVE-2026-42489.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-42490.html">https://www.suse.com/security/cve/CVE-2026-42490.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1266952">https://bugzilla.suse.com/show_bug.cgi?id=1266952</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1266953">https://bugzilla.suse.com/show_bug.cgi?id=1266953</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1266955">https://bugzilla.suse.com/show_bug.cgi?id=1266955</a>
</li>
</ul>
</div>