<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-2025:03172-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2025-09-11T12:54:02Z</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=1027519">bsc#1027519</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1248807">bsc#1248807</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-2025-27466.html">CVE-2025-27466</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2025-58142.html">CVE-2025-58142</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2025-58143.html">CVE-2025-58143</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-2025-27466</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-27466</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-2025-58142</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-58142</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-2025-58143</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.0</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-58143</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>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">Basesystem Module 15-SP7</li>
<li class="list-group-item">Server 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>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves three vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for xen fixes the following issues:</p>
<p>Security issues fixed: </p>
<ul>
<li>CVE-2025-27466: NULL pointer dereference in the Viridian interface when updating the reference TSC area (bsc#1248807).</li>
<li>CVE-2025-58142: NULL pointer dereference in the Viridian interface due to assumption that the SIM page is mapped when
a synthetic timer message has to be delivered (bsc#1248807).</li>
<li>CVE-2025-58143: information leak and reference counter underflow in the Viridian interface due to race in the mapping
of the reference TSC page (bsc#1248807).</li>
</ul>
<p>Other issues fixed:</p>
<ul>
<li>efi: Call FreePages() only if needed (bsc#1027519).</li>
<li>x86/hpet: do local APIC EOI after interrupt processing (bsc#1027519).</li>
<li>x86/hvm/ioreq: Fix condition in hvm_alloc_legacy_ioreq_gfn() (bsc#1027519).</li>
<li>x86/idle: Fix the C6 eoi_errata[] list to include NEHALEM_EX (bsc#1027519).</li>
<li>x86/iommu: setup MMCFG ahead of IOMMU (bsc#1027519).</li>
<li>x86/mce: Adjustments to intel_init_ppin() (bsc#1027519).</li>
<li>x86/mkelf32: pad load segment to 2Mb boundary (bsc#1027519).</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">
Basesystem Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2025-3172=1</code>
</li>
<li class="list-group-item">
Server Applications Module 15-SP7
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2025-3172=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
Basesystem Module 15-SP7 (x86_64)
<ul>
<li>xen-tools-domU-debuginfo-4.20.1_04-150700.3.11.1</li>
<li>xen-libs-4.20.1_04-150700.3.11.1</li>
<li>xen-tools-domU-4.20.1_04-150700.3.11.1</li>
<li>xen-debugsource-4.20.1_04-150700.3.11.1</li>
<li>xen-libs-debuginfo-4.20.1_04-150700.3.11.1</li>
</ul>
</li>
<li>
Server Applications Module 15-SP7 (x86_64)
<ul>
<li>xen-tools-debuginfo-4.20.1_04-150700.3.11.1</li>
<li>xen-4.20.1_04-150700.3.11.1</li>
<li>xen-tools-4.20.1_04-150700.3.11.1</li>
<li>xen-debugsource-4.20.1_04-150700.3.11.1</li>
<li>xen-devel-4.20.1_04-150700.3.11.1</li>
</ul>
</li>
<li>
Server Applications Module 15-SP7 (noarch)
<ul>
<li>xen-tools-xendomains-wait-disk-4.20.1_04-150700.3.11.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-27466.html">https://www.suse.com/security/cve/CVE-2025-27466.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-58142.html">https://www.suse.com/security/cve/CVE-2025-58142.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-58143.html">https://www.suse.com/security/cve/CVE-2025-58143.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1027519">https://bugzilla.suse.com/show_bug.cgi?id=1027519</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1248807">https://bugzilla.suse.com/show_bug.cgi?id=1248807</a>
</li>
</ul>
</div>