<div class="container">
<h1>Security update for dnsmasq</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2025:0071-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2025-01-10T16:54:52Z</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=1200344">bsc#1200344</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1207174">bsc#1207174</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1209358">bsc#1209358</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1214884">bsc#1214884</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1219823">bsc#1219823</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1219826">bsc#1219826</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-2023-28450.html">CVE-2023-28450</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-50387.html">CVE-2023-50387</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-50868.html">CVE-2023-50868</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-2023-28450</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-28450</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-2023-50387</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-2023-50387</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-2023-50868</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>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">Basesystem Module 15-SP6</li>
<li class="list-group-item">openSUSE Leap 15.4</li>
<li class="list-group-item">openSUSE Leap 15.6</li>
<li class="list-group-item">openSUSE Leap Micro 5.5</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP4 LTSS</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing LTSS 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing LTSS 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.3</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.4</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.5</li>
<li class="list-group-item">SUSE Linux Enterprise Micro for Rancher 5.3</li>
<li class="list-group-item">SUSE Linux Enterprise Micro for Rancher 5.4</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP4 LTSS</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP5 LTSS</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP6</li>
<li class="list-group-item">SUSE Manager Proxy 4.3</li>
<li class="list-group-item">SUSE Manager Retail Branch Server 4.3</li>
<li class="list-group-item">SUSE Manager Server 4.3</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves three vulnerabilities and has three security fixes can now be installed.</p>
<h2>Description:</h2>
<p>This update for dnsmasq fixes the following issues:</p>
<ul>
<li>Version update to 2.90:</li>
<li>CVE-2023-50387: Fixed a Denial Of Service while trying to validate specially crafted DNSSEC responses. (bsc#1219823)</li>
<li>CVE-2023-50868: Fixed a Denial Of Service while trying to validate specially crafted DNSSEC responses. (bsc#1219826)</li>
<li>CVE-2023-28450: Default maximum EDNS.0 UDP packet size should be 1232. (bsc#1209358)</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-SP6
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Desktop 15 SP4 LTSS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLED-15-SP4-LTSS-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 15 SP4 LTSS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 15 SP5 LTSS
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP Applications 15 SP4
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP Applications 15 SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Manager Proxy 4.3
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Manager Retail Branch Server 4.3
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.3-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Manager Server 4.3
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.3-2025-71=1</code>
</li>
<li class="list-group-item">
openSUSE Leap 15.4
<br/>
<code>zypper in -t patch SUSE-2025-71=1</code>
</li>
<li class="list-group-item">
openSUSE Leap Micro 5.5
<br/>
<code>zypper in -t patch openSUSE-Leap-Micro-5.5-2025-71=1</code>
</li>
<li class="list-group-item">
openSUSE Leap 15.6
<br/>
<code>zypper in -t patch openSUSE-SLE-15.6-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro for Rancher 5.3
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.3-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro 5.3
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.3-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro for Rancher 5.4
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.4-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro 5.4
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.4-2025-71=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro 5.5
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.5-2025-71=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Desktop 15 SP4 LTSS (x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Manager Proxy 4.3 (x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Manager Retail Branch Server 4.3 (x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Manager Server 4.3 (ppc64le s390x x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)
<ul>
<li>dnsmasq-utils-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-utils-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
openSUSE Leap Micro 5.5 (aarch64 s390x x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
<ul>
<li>dnsmasq-utils-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-utils-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 s390x x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.3 (aarch64 s390x x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.4 (aarch64 s390x x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
<ul>
<li>dnsmasq-debuginfo-2.90-150400.16.3.1</li>
<li>dnsmasq-debugsource-2.90-150400.16.3.1</li>
<li>dnsmasq-2.90-150400.16.3.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-28450.html">https://www.suse.com/security/cve/CVE-2023-28450.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-50387.html">https://www.suse.com/security/cve/CVE-2023-50387.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-50868.html">https://www.suse.com/security/cve/CVE-2023-50868.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1200344">https://bugzilla.suse.com/show_bug.cgi?id=1200344</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1207174">https://bugzilla.suse.com/show_bug.cgi?id=1207174</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1209358">https://bugzilla.suse.com/show_bug.cgi?id=1209358</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1214884">https://bugzilla.suse.com/show_bug.cgi?id=1214884</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1219823">https://bugzilla.suse.com/show_bug.cgi?id=1219823</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1219826">https://bugzilla.suse.com/show_bug.cgi?id=1219826</a>
</li>
</ul>
</div>