<div class="container">
<h1>Security update for the Linux Kernel (Live Patch 33 for SLE 15 SP3)</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2023:4219-1</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=1212934">bsc#1212934</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1214812">bsc#1214812</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215118">bsc#1215118</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215440">bsc#1215440</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-2023-3390.html">CVE-2023-3390</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-4004.html">CVE-2023-4004</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-4147.html">CVE-2023-4147</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-4623.html">CVE-2023-4623</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-2023-3390</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-2023-3390</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-2023-4004</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-2023-4004</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-2023-4147</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-2023-4147</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-2023-4623</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-2023-4623</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">openSUSE Leap 15.3</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP3</li>
<li class="list-group-item">SUSE Linux Enterprise Live Patching 15-SP3</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.1</li>
<li class="list-group-item">SUSE Linux Enterprise Micro 5.2</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP3</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP3</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 5.3.18-150300_59_124 fixes several issues.</p>
<p>The following security issues were fixed:</p>
<ul>
<li>CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler which could be exploited to achieve local privilege escalation (bsc#1215440).</li>
<li>CVE-2023-4147: Fixed use-after-free in nf_tables_newrule (bsc#1215118).</li>
<li>CVE-2023-4004: Fixed improper element removal netfilter nft_set_pipapo (bsc#1214812).</li>
<li>CVE-2023-3390: Fixed an use-after-free vulnerability in the netfilter subsystem in net/netfilter/nf_tables_api.c that could allow a local attacker with user access to cause a privilege escalation issue (bsc#1212934).</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 15.3
<br/>
<code>zypper in -t patch SUSE-2023-4219=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Live Patching 15-SP3
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2023-4219=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
openSUSE Leap 15.3 (ppc64le s390x x86_64)
<ul>
<li>kernel-livepatch-5_3_18-150300_59_124-default-debuginfo-5-150300.2.2</li>
<li>kernel-livepatch-SLE15-SP3_Update_33-debugsource-5-150300.2.2</li>
<li>kernel-livepatch-5_3_18-150300_59_124-default-5-150300.2.2</li>
</ul>
</li>
<li>
openSUSE Leap 15.3 (x86_64)
<ul>
<li>kernel-livepatch-5_3_18-150300_59_124-preempt-debuginfo-5-150300.2.2</li>
<li>kernel-livepatch-5_3_18-150300_59_124-preempt-5-150300.2.2</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Live Patching 15-SP3 (ppc64le s390x x86_64)
<ul>
<li>kernel-livepatch-5_3_18-150300_59_124-default-5-150300.2.2</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-3390.html">https://www.suse.com/security/cve/CVE-2023-3390.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-4004.html">https://www.suse.com/security/cve/CVE-2023-4004.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-4147.html">https://www.suse.com/security/cve/CVE-2023-4147.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-4623.html">https://www.suse.com/security/cve/CVE-2023-4623.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1212934">https://bugzilla.suse.com/show_bug.cgi?id=1212934</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1214812">https://bugzilla.suse.com/show_bug.cgi?id=1214812</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215118">https://bugzilla.suse.com/show_bug.cgi?id=1215118</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215440">https://bugzilla.suse.com/show_bug.cgi?id=1215440</a>
</li>
</ul>
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