<div class="container">
<h1>Security update for systemd</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:21003-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-04-07T15:08:39Z</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=1255326">bsc#1255326</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1258344">bsc#1258344</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259418">bsc#1259418</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259650">bsc#1259650</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259697">bsc#1259697</a>
</li>
<li style="display: inline;">
<a href="https://jira.suse.com/browse/PED-14853">jsc#PED-14853</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-2026-29111.html">CVE-2026-29111</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-4105.html">CVE-2026-4105</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-2026-29111</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.8</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:N/PR:L/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-2026-29111</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-29111</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4105</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.3</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:P/PR:L/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-2026-4105</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4105</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.7</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:L/UI:R/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">SUSE Linux Micro 6.2</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves two vulnerabilities, contains one feature and has three fixes can now be installed.</p>
<h2>Description:</h2>
<p>This update for systemd fixes the following issues:</p>
<p>Update to systemd v257.13:</p>
<p>Security issues:</p>
<ul>
<li>CVE-2026-4105: privilege escalation due to improper access control in RegisterMachine D-Bus method (bsc#1259650).</li>
<li>CVE-2026-29111: local unprivileged user can trigger an assert in systemd (bsc#1259418).</li>
<li>udev: local root execution via malicious hardware devices and unsanitized kernel output (bsc#1259697).</li>
</ul>
<p>Non security issues:</p>
<ul>
<li>Avoid shipping (empty) directories and ghost files in /var (jsc#PED-14853).</li>
<li>Sign systemd-boot EFI binary on aarch64 (bsc#1258344)</li>
<li>terminal-util: stop doing 0/upper bound check in tty_is_vc() (bsc#1255326)</li>
</ul>
<p>Changelog:</p>
<ul>
<li>6941d92dc2 machined: reject invalid class types when registering machines (bsc#1259650 CVE-2026-4105)</li>
<li>03bb697b8d udev: check for invalid chars in various fields received from the kernel (bsc#1259697)</li>
<li>54588d2ded core: validate input cgroup path more prudently (bsc#1259418 CVE-2026-29111)</li>
<li>fb9d92682b terminal-util: stop doing 0/upper bound check in tty_is_vc() (bsc#1255326)</li>
</ul>
<p>For a complete list of changes, visit:
https://github.com/openSUSE/systemd/compare/3c53ef3ea20bd43ef587cbdfa7107aeb1ef55654...d349fc5cd4f9ee2b7884c2610647e92806d14b28</p>
<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">
SUSE Linux Micro 6.2
<br/>
<code>zypper in -t patch SUSE-SL-Micro-6.2-485=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
<ul>
<li>systemd-portable-257.13-160000.1.1</li>
<li>libsystemd0-debuginfo-257.13-160000.1.1</li>
<li>libsystemd0-257.13-160000.1.1</li>
<li>udev-257.13-160000.1.1</li>
<li>systemd-debugsource-257.13-160000.1.1</li>
<li>libudev1-debuginfo-257.13-160000.1.1</li>
<li>systemd-container-257.13-160000.1.1</li>
<li>systemd-experimental-debuginfo-257.13-160000.1.1</li>
<li>udev-debuginfo-257.13-160000.1.1</li>
<li>systemd-experimental-257.13-160000.1.1</li>
<li>systemd-container-debuginfo-257.13-160000.1.1</li>
<li>systemd-journal-remote-257.13-160000.1.1</li>
<li>systemd-portable-debuginfo-257.13-160000.1.1</li>
<li>systemd-journal-remote-debuginfo-257.13-160000.1.1</li>
<li>systemd-debuginfo-257.13-160000.1.1</li>
<li>systemd-257.13-160000.1.1</li>
<li>libudev1-257.13-160000.1.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-29111.html">https://www.suse.com/security/cve/CVE-2026-29111.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-4105.html">https://www.suse.com/security/cve/CVE-2026-4105.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1255326">https://bugzilla.suse.com/show_bug.cgi?id=1255326</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1258344">https://bugzilla.suse.com/show_bug.cgi?id=1258344</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259418">https://bugzilla.suse.com/show_bug.cgi?id=1259418</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259650">https://bugzilla.suse.com/show_bug.cgi?id=1259650</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1259697">https://bugzilla.suse.com/show_bug.cgi?id=1259697</a>
</li>
<li>
<a href="https://jira.suse.com/browse/PED-14853">https://jira.suse.com/browse/PED-14853</a>
</li>
</ul>
</div>