<div class="container">
<h1>Security update for bind</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2024:2862-1</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=1228256">bsc#1228256</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1228257">bsc#1228257</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1228258">bsc#1228258</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-2024-1737.html">CVE-2024-1737</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2024-1975.html">CVE-2024-1975</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2024-4076.html">CVE-2024-4076</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-2024-1737</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-2024-1975</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-2024-4076</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-SP5</li>
<li class="list-group-item">openSUSE Leap 15.5</li>
<li class="list-group-item">Server Applications Module 15-SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.5</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP5</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 bind fixes the following issues:</p>
<p>Update to 9.16.50:</p>
<ul>
<li>Bug Fixes:</li>
<li>A regression in cache-cleaning code enabled memory use to grow
significantly more quickly than before, until the configured
max-cache-size limit was reached. This has been fixed.</li>
<li>Using rndc flush inadvertently caused cache cleaning to become
less effective. This could ultimately lead to the configured
max-cache-size limit being exceeded and has now been fixed.</li>
<li>The logic for cleaning up expired cached DNS records was
tweaked to be more aggressive. This change helps with enforcing
max-cache-ttl and max-ncache-ttl in a timely manner.</li>
<li>It was possible to trigger a use-after-free assertion when the
overmem cache cleaning was initiated. This has been fixed.
New Features:</li>
<li>Added RESOLVER.ARPA to the built in empty zones.</li>
<li>Security Fixes:</li>
<li>It is possible to craft excessively large numbers of resource
record types for a given owner name, which has the effect of
slowing down database processing. This has been addressed by
adding a configurable limit to the number of records that can
be stored per name and type in a cache or zone database. The
default is 100, which can be tuned with the new
max-types-per-name option. (CVE-2024-1737, bsc#1228256)</li>
<li>Validating DNS messages signed using the SIG(0) protocol (RFC
2931) could cause excessive CPU load, leading to a
denial-of-service condition. Support for SIG(0) message
validation was removed from this version of named.
(CVE-2024-1975, bsc#1228257)</li>
<li>When looking up the NS records of parent zones as part of
looking up DS records, it was possible for named to trigger an
assertion failure if serve-stale was enabled. This has been
fixed. (CVE-2024-4076, bsc#1228258)</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 15.5
<br/>
<code>zypper in -t patch SUSE-2024-2862=1 openSUSE-SLE-15.5-2024-2862=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Micro 5.5
<br/>
<code>zypper in -t patch SUSE-SLE-Micro-5.5-2024-2862=1</code>
</li>
<li class="list-group-item">
Basesystem Module 15-SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP5-2024-2862=1</code>
</li>
<li class="list-group-item">
Server Applications Module 15-SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP5-2024-2862=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)
<ul>
<li>bind-debuginfo-9.16.50-150500.8.21.1</li>
<li>bind-debugsource-9.16.50-150500.8.21.1</li>
<li>bind-utils-9.16.50-150500.8.21.1</li>
<li>bind-9.16.50-150500.8.21.1</li>
<li>bind-utils-debuginfo-9.16.50-150500.8.21.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.5 (noarch)
<ul>
<li>bind-doc-9.16.50-150500.8.21.1</li>
<li>python3-bind-9.16.50-150500.8.21.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
<ul>
<li>bind-utils-9.16.50-150500.8.21.1</li>
<li>bind-utils-debuginfo-9.16.50-150500.8.21.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.5 (noarch)
<ul>
<li>python3-bind-9.16.50-150500.8.21.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Micro 5.5 (x86_64)
<ul>
<li>bind-debugsource-9.16.50-150500.8.21.1</li>
<li>bind-debuginfo-9.16.50-150500.8.21.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP5 (aarch64 ppc64le s390x x86_64)
<ul>
<li>bind-debugsource-9.16.50-150500.8.21.1</li>
<li>bind-utils-9.16.50-150500.8.21.1</li>
<li>bind-utils-debuginfo-9.16.50-150500.8.21.1</li>
<li>bind-debuginfo-9.16.50-150500.8.21.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP5 (noarch)
<ul>
<li>python3-bind-9.16.50-150500.8.21.1</li>
</ul>
</li>
<li>
Server Applications Module 15-SP5 (aarch64 ppc64le s390x x86_64)
<ul>
<li>bind-debugsource-9.16.50-150500.8.21.1</li>
<li>bind-9.16.50-150500.8.21.1</li>
<li>bind-debuginfo-9.16.50-150500.8.21.1</li>
</ul>
</li>
<li>
Server Applications Module 15-SP5 (noarch)
<ul>
<li>bind-doc-9.16.50-150500.8.21.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2024-1737.html">https://www.suse.com/security/cve/CVE-2024-1737.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2024-1975.html">https://www.suse.com/security/cve/CVE-2024-1975.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2024-4076.html">https://www.suse.com/security/cve/CVE-2024-4076.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1228256">https://bugzilla.suse.com/show_bug.cgi?id=1228256</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1228257">https://bugzilla.suse.com/show_bug.cgi?id=1228257</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1228258">https://bugzilla.suse.com/show_bug.cgi?id=1228258</a>
</li>
</ul>
</div>