<div class="container">
<h1>Security update for glibc</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:21019-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-04-10T06:18:59Z</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=1258319">bsc#1258319</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1260078">bsc#1260078</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1260082">bsc#1260082</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-2026-4437.html">CVE-2026-4437</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2026-4438.html">CVE-2026-4438</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-2026-4437</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.7</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4437</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.7</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4437</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-2026-4438</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.7</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4438</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.7</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2026-4438</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.4</span>
<span class="cvss-vector">CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N</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 and has one fix can now be installed.</p>
<h2>Description:</h2>
<p>This update for glibc fixes the following issues:</p>
<p>Security fixes:</p>
<ul>
<li>CVE-2026-4437: incorrect DNS response parsing via crafted DNS server response (bsc#1260078).</li>
<li>CVE-2026-4438: invalid DNS hostname returned via gethostbyaddr functions (bsc#1260082).</li>
</ul>
<p>Other fixes:</p>
<ul>
<li>nss: Missing checks in __nss_configure_lookup, __nss_database_get (bsc#1258319).</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-6.2-516=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
<ul>
<li>glibc-locale-base-2.40-160000.4.1</li>
<li>glibc-devel-debuginfo-2.40-160000.4.1</li>
<li>glibc-devel-2.40-160000.4.1</li>
<li>glibc-locale-2.40-160000.4.1</li>
<li>glibc-debuginfo-2.40-160000.4.1</li>
<li>glibc-2.40-160000.4.1</li>
<li>glibc-debugsource-2.40-160000.4.1</li>
</ul>
</li>
<li>
SUSE Linux Micro 6.2 (aarch64 x86_64)
<ul>
<li>glibc-gconv-modules-extra-2.40-160000.4.1</li>
<li>glibc-gconv-modules-extra-debuginfo-2.40-160000.4.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-4437.html">https://www.suse.com/security/cve/CVE-2026-4437.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2026-4438.html">https://www.suse.com/security/cve/CVE-2026-4438.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1258319">https://bugzilla.suse.com/show_bug.cgi?id=1258319</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1260078">https://bugzilla.suse.com/show_bug.cgi?id=1260078</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1260082">https://bugzilla.suse.com/show_bug.cgi?id=1260082</a>
</li>
</ul>
</div>