<div class="container">
<h1>Security update for the Linux Kernel (Live Patch 45 for SLE 12 SP5)</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2023:3749-1</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=1210619">#1210619</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213587">#1213587</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213706">#1213706</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215119">#1215119</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-2023-1829.html">CVE-2023-1829</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-3609.html">CVE-2023-3609</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-3776.html">CVE-2023-3776</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-3812.html">CVE-2023-3812</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-2023-1829</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-2023-1829</span>
<span class="cvss-source">
(
NVD
):
</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-2023-3609</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-2023-3609</span>
<span class="cvss-source">
(
NVD
):
</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-2023-3776</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-2023-3776</span>
<span class="cvss-source">
(
NVD
):
</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-2023-3812</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-2023-3812</span>
<span class="cvss-source">
(
NVD
):
</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>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 12 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Live Patching 12-SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server 12 SP5</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 12 SP5</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves four vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for the Linux Kernel 4.12.14-122_165 fixes several issues.</p>
<p>The following security issues were fixed:</p>
<ul>
<li>CVE-2023-3776: Fixed improper refcount update in cls_fw leads to use-after-free (bsc#1215119).</li>
<li>CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210619).</li>
<li>CVE-2023-3609: Fixed reference counter leak leading to overflow in net/sched (bsc#1213587).</li>
<li>CVE-2023-3812: Fixed an out-of-bounds memory access flaw in the TUN/TAP device driver functionality that could allow a local user to crash or potentially escalate their privileges on the system (bsc#1213706).</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 Enterprise Live Patching 12-SP5
<br/>
<code>zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2023-3749=1 SUSE-SLE-Live-Patching-12-SP5-2023-3744=1 SUSE-SLE-Live-Patching-12-SP5-2023-3740=1 SUSE-SLE-Live-Patching-12-SP5-2023-3746=1 SUSE-SLE-Live-Patching-12-SP5-2023-3754=1 SUSE-SLE-Live-Patching-12-SP5-2023-3741=1 SUSE-SLE-Live-Patching-12-SP5-2023-3743=1 SUSE-SLE-Live-Patching-12-SP5-2023-3750=1 SUSE-SLE-Live-Patching-12-SP5-2023-3742=1 SUSE-SLE-Live-Patching-12-SP5-2023-3745=1 SUSE-SLE-Live-Patching-12-SP5-2023-3747=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)
<ul>
<li>kgraft-patch-4_12_14-122_162-default-4-2.1</li>
<li>kgraft-patch-4_12_14-122_165-default-3-2.1</li>
<li>kgraft-patch-4_12_14-122_136-default-11-2.2</li>
<li>kgraft-patch-4_12_14-122_159-default-5-2.1</li>
<li>kgraft-patch-4_12_14-122_156-default-6-2.1</li>
<li>kgraft-patch-4_12_14-122_139-default-10-2.2</li>
<li>kgraft-patch-4_12_14-122_150-default-8-2.2</li>
<li>kgraft-patch-4_12_14-122_133-default-12-2.2</li>
<li>kgraft-patch-4_12_14-122_153-default-6-2.1</li>
<li>kgraft-patch-4_12_14-122_147-default-8-2.2</li>
<li>kgraft-patch-4_12_14-122_144-default-9-2.2</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-1829.html">https://www.suse.com/security/cve/CVE-2023-1829.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-3609.html">https://www.suse.com/security/cve/CVE-2023-3609.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-3776.html">https://www.suse.com/security/cve/CVE-2023-3776.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-3812.html">https://www.suse.com/security/cve/CVE-2023-3812.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1210619">https://bugzilla.suse.com/show_bug.cgi?id=1210619</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213587">https://bugzilla.suse.com/show_bug.cgi?id=1213587</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213706">https://bugzilla.suse.com/show_bug.cgi?id=1213706</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215119">https://bugzilla.suse.com/show_bug.cgi?id=1215119</a>
</li>
</ul>
</div>