<div class="container">
<h1>Security update for the Linux Kernel</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2023:4028-1</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=1208600">#1208600</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1208995">#1208995</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1210448">#1210448</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213666">#1213666</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213927">#1213927</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1214348">#1214348</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1214451">#1214451</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215115">#1215115</a>
</li>
<li style="display: inline;">
<a href="https://jira.suse.com/browse/PED-4579">PED-4579</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-2023-1077.html">CVE-2023-1077</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-1192.html">CVE-2023-1192</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-2007.html">CVE-2023-2007</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-20588.html">CVE-2023-20588</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-3772.html">CVE-2023-3772</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-4385.html">CVE-2023-4385</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-4459.html">CVE-2023-4459</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-2023-1077</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-2023-1077</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>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-1192</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-2007</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.4</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-2007</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-2023-20588</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.0</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20588</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-3772</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-3772</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-4385</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-4385</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-4459</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-4459</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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">SUSE Linux Enterprise Server 11 SP4</li>
<li class="list-group-item">SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE 11-SP4</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves eight vulnerabilities and contains one feature can now be installed.</p>
<h2>Description:</h2>
<p>The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes.</p>
<p>The following security bugs were fixed:</p>
<ul>
<li>CVE-2023-1077: Fixed a type confusion in pick_next_rt_entity() that could cause memory corruption (bsc#1208600).</li>
<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#1215115).</li>
<li>CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread() (bsc#1208995).</li>
<li>CVE-2023-20588: Fixed a potential data leak that could be triggered through a side channel when division by zero occurred on some AMD processors (bsc#1213927).</li>
<li>CVE-2023-4459: Fixed a NULL pointer dereference flaw in the vmxnet3 driver that may have allowed a local attacker with user privileges to cause a denial of service (bsc#1214451).</li>
<li>CVE-2023-3772: Fixed a flaw in the XFRM subsystem that may have allowed a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer leading to denial of service (bsc#1213666).</li>
<li>CVE-2023-2007: Removed the dpt_i2o driver due to security issues (bsc#1210448, jsc#PED-4579).</li>
<li>CVE-2023-4385: Fixed a NULL pointer dereference flaw in dbFree that may have allowed a local attacker to crash the system due to a missing sanity check (bsc#1214348).</li>
</ul>
<h2>Special Instructions and Notes:</h2>
<ul>
<li>Please reboot the system after installing this update.</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 Server 11 SP4 LTSS EXTREME CORE 11-SP4
<br/>
<code>zypper in -t patch SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2023-4028=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 11 SP4
<br/>
<code>zypper in -t patch SUSE-SLE-SERVER-11-SP4-LTSS-EXTREME-CORE-2023-4028=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE 11-SP4 (nosrc x86_64)
<ul>
<li>kernel-xen-3.0.101-108.147.1</li>
<li>kernel-trace-3.0.101-108.147.1</li>
<li>kernel-default-3.0.101-108.147.1</li>
<li>kernel-ec2-3.0.101-108.147.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE 11-SP4 (x86_64)
<ul>
<li>kernel-trace-base-3.0.101-108.147.1</li>
<li>kernel-ec2-base-3.0.101-108.147.1</li>
<li>kernel-ec2-devel-3.0.101-108.147.1</li>
<li>kernel-syms-3.0.101-108.147.1</li>
<li>kernel-xen-base-3.0.101-108.147.1</li>
<li>kernel-trace-devel-3.0.101-108.147.1</li>
<li>kernel-xen-devel-3.0.101-108.147.1</li>
<li>kernel-source-3.0.101-108.147.1</li>
<li>kernel-default-devel-3.0.101-108.147.1</li>
<li>kernel-default-base-3.0.101-108.147.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 11 SP4 (nosrc x86_64)
<ul>
<li>kernel-xen-3.0.101-108.147.1</li>
<li>kernel-trace-3.0.101-108.147.1</li>
<li>kernel-default-3.0.101-108.147.1</li>
<li>kernel-ec2-3.0.101-108.147.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 11 SP4 (x86_64)
<ul>
<li>kernel-trace-base-3.0.101-108.147.1</li>
<li>kernel-ec2-base-3.0.101-108.147.1</li>
<li>kernel-ec2-devel-3.0.101-108.147.1</li>
<li>kernel-syms-3.0.101-108.147.1</li>
<li>kernel-xen-base-3.0.101-108.147.1</li>
<li>kernel-trace-devel-3.0.101-108.147.1</li>
<li>kernel-xen-devel-3.0.101-108.147.1</li>
<li>kernel-source-3.0.101-108.147.1</li>
<li>kernel-default-devel-3.0.101-108.147.1</li>
<li>kernel-default-base-3.0.101-108.147.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-1077.html">https://www.suse.com/security/cve/CVE-2023-1077.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-1192.html">https://www.suse.com/security/cve/CVE-2023-1192.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-2007.html">https://www.suse.com/security/cve/CVE-2023-2007.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-20588.html">https://www.suse.com/security/cve/CVE-2023-20588.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-3772.html">https://www.suse.com/security/cve/CVE-2023-3772.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-4385.html">https://www.suse.com/security/cve/CVE-2023-4385.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-4459.html">https://www.suse.com/security/cve/CVE-2023-4459.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=1208600">https://bugzilla.suse.com/show_bug.cgi?id=1208600</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1208995">https://bugzilla.suse.com/show_bug.cgi?id=1208995</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1210448">https://bugzilla.suse.com/show_bug.cgi?id=1210448</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213666">https://bugzilla.suse.com/show_bug.cgi?id=1213666</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213927">https://bugzilla.suse.com/show_bug.cgi?id=1213927</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1214348">https://bugzilla.suse.com/show_bug.cgi?id=1214348</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1214451">https://bugzilla.suse.com/show_bug.cgi?id=1214451</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215115">https://bugzilla.suse.com/show_bug.cgi?id=1215115</a>
</li>
<li>
<a href="https://jira.suse.com/browse/PED-4579">https://jira.suse.com/browse/PED-4579</a>
</li>
</ul>
</div>