<div class="container">
<h1>Security update for the Linux Kernel (Live Patch 28 for SLE 15 SP3)</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2023:4862-1</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=1215097">bsc#1215097</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215442">bsc#1215442</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215519">bsc#1215519</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-2023-2163.html">CVE-2023-2163</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-3777.html">CVE-2023-3777</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-4622.html">CVE-2023-4622</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-2023-2163</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.1</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-2163</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">10.0</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-3777</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-2023-3777</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-2023-4622</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-2023-4622</span>
<span class="cvss-source">
(
NVD
):
</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>
</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 three vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for the Linux Kernel 5.3.18-150300_59_109 fixes several issues.</p>
<p>The following security issues were fixed:</p>
<ul>
<li>CVE-2023-3777: Fixed a use-after-free vulnerability in netfilter: nf_tables component can be exploited to achieve local privilege escalation. (bsc#1215097)</li>
<li>CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain sockets component which could be exploited to achieve local privilege escalation (bsc#1215442).</li>
<li>CVE-2023-2163: Fixed an incorrect verifier pruning in BPF that could lead to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape. (bsc#1215519)</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-2023-4862=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-SP3-2023-4862=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_109-default-debuginfo-11-150300.2.2</li>
<li>kernel-livepatch-5_3_18-150300_59_109-default-11-150300.2.2</li>
<li>kernel-livepatch-SLE15-SP3_Update_28-debugsource-11-150300.2.2</li>
</ul>
</li>
<li>
openSUSE Leap 15.3 (x86_64)
<ul>
<li>kernel-livepatch-5_3_18-150300_59_109-preempt-debuginfo-11-150300.2.2</li>
<li>kernel-livepatch-5_3_18-150300_59_109-preempt-11-150300.2.2</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Live Patching 15-SP3 (ppc64le s390x x86_64)
<ul>
<li>kernel-livepatch-5_3_18-150300_59_109-default-11-150300.2.2</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-2163.html">https://www.suse.com/security/cve/CVE-2023-2163.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-3777.html">https://www.suse.com/security/cve/CVE-2023-3777.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-4622.html">https://www.suse.com/security/cve/CVE-2023-4622.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215097">https://bugzilla.suse.com/show_bug.cgi?id=1215097</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215442">https://bugzilla.suse.com/show_bug.cgi?id=1215442</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215519">https://bugzilla.suse.com/show_bug.cgi?id=1215519</a>
</li>
</ul>
</div>