<div class="container">
<h1>Security update for kernel-firmware</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2023:4665-1</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=1215823">bsc#1215823</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215831">bsc#1215831</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-2021-26345.html">CVE-2021-26345</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2021-46766.html">CVE-2021-46766</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2021-46774.html">CVE-2021-46774</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2022-23820.html">CVE-2022-23820</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2022-23830.html">CVE-2022-23830</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-20519.html">CVE-2023-20519</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-20521.html">CVE-2023-20521</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-20526.html">CVE-2023-20526</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-20533.html">CVE-2023-20533</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-20566.html">CVE-2023-20566</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-20592.html">CVE-2023-20592</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-2021-26345</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">1.6</span>
<span class="cvss-vector">CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2021-26345</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">4.9</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2021-46766</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">2.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2021-46766</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-2021-46774</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.7</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2021-46774</span>
<span class="cvss-source">
(
NVD
):
</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-2022-23820</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">7.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2022-23820</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2022-23830</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">1.9</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2022-23830</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20519</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:U/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20519</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">3.3</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20521</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">3.3</span>
<span class="cvss-vector">CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20521</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.7</span>
<span class="cvss-vector">CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20526</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">1.9</span>
<span class="cvss-vector">CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20526</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">4.6</span>
<span class="cvss-vector">CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20533</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.1</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20533</span>
<span class="cvss-source">
(
NVD
):
</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-2023-20566</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20566</span>
<span class="cvss-source">
(
NVD
):
</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:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20592</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.3</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20592</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:H/A:N</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">SUSE CaaS Platform 4.0</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP1</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP1</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP1</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP2</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves 11 vulnerabilities can now be installed.</p>
<h2>Description:</h2>
<p>This update for kernel-firmware fixes the following issues:</p>
<p>Update AMD ucode to 20231030 (bsc#1215831):</p>
<ul>
<li>CVE-2022-23820: Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code execution.</li>
<li>CVE-2021-46774: Insufficient input validation in ABL may enable a privileged attacker to perform arbitrary DRAM writes, potentially resulting in code execution and privilege escalation.</li>
<li>CVE-2023-20533: Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker using DMA to read/write from/to invalid DRAM address potentially resulting in denial-of-service.
0 CVE-2023-20519: A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious hypervisor to masquerade as the guest's migration agent resulting in a potential loss of guest integrity.</li>
<li>CVE-2023-20566: Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity.</li>
<li>CVE-2023-20521: TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading to loss of confidentiality or a denial of service.</li>
<li>CVE-2021-46766: Improper clearing of sensitive data in the ASP Bootloader may expose secret keys to a privileged attacker accessing ASP SRAM, potentially leading to a loss of confidentiality.</li>
<li>CVE-2022-23830: SMM configuration may not be immutable, as intended, when SNP is enabled resulting in a potential limited loss of guest memory integrity.</li>
<li>CVE-2023-20526: Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP memory potentially leading to a loss of confidentiality.</li>
<li>CVE-2021-26345: Failure to validate the value in APCB may allow an attacker with physical access to tamper with the APCB token to force an out-of-bounds memory read potentially resulting in a denial of service.</li>
<li>CVE-2023-20592: Issue with INVD instruction aka CacheWarpAttack (bsc#1215823).</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 High Performance Computing 15 SP1 LTSS 15-SP1
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-LTSS-2023-4665=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2
<br/>
<code>zypper in -t patch SUSE-SLE-Product-HPC-15-SP2-LTSS-2023-4665=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-LTSS-2023-4665=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES-15-SP2-LTSS-2023-4665=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP Applications 15 SP1
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2023-4665=1</code>
</li>
<li class="list-group-item">
SUSE Linux Enterprise Server for SAP Applications 15 SP2
<br/>
<code>zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP2-2023-4665=1</code>
</li>
<li class="list-group-item">
SUSE CaaS Platform 4.0
<br/>
<span>
To install this update, use the SUSE CaaS Platform 'skuba' tool. It will
inform you if it detects new updates and let you then trigger updating of
the complete cluster in a controlled way.
</span>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS 15-SP1 (noarch)
<ul>
<li>kernel-firmware-20200107-150100.3.40.1</li>
<li>ucode-amd-20200107-150100.3.40.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 (noarch)
<ul>
<li>kernel-firmware-20200107-150100.3.40.1</li>
<li>ucode-amd-20200107-150100.3.40.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 (noarch)
<ul>
<li>kernel-firmware-20200107-150100.3.40.1</li>
<li>ucode-amd-20200107-150100.3.40.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (noarch)
<ul>
<li>kernel-firmware-20200107-150100.3.40.1</li>
<li>ucode-amd-20200107-150100.3.40.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP1 (noarch)
<ul>
<li>kernel-firmware-20200107-150100.3.40.1</li>
<li>ucode-amd-20200107-150100.3.40.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server for SAP Applications 15 SP2 (noarch)
<ul>
<li>kernel-firmware-20200107-150100.3.40.1</li>
<li>ucode-amd-20200107-150100.3.40.1</li>
</ul>
</li>
<li>
SUSE CaaS Platform 4.0 (noarch)
<ul>
<li>kernel-firmware-20200107-150100.3.40.1</li>
<li>ucode-amd-20200107-150100.3.40.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2021-26345.html">https://www.suse.com/security/cve/CVE-2021-26345.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2021-46766.html">https://www.suse.com/security/cve/CVE-2021-46766.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2021-46774.html">https://www.suse.com/security/cve/CVE-2021-46774.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2022-23820.html">https://www.suse.com/security/cve/CVE-2022-23820.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2022-23830.html">https://www.suse.com/security/cve/CVE-2022-23830.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-20519.html">https://www.suse.com/security/cve/CVE-2023-20519.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-20521.html">https://www.suse.com/security/cve/CVE-2023-20521.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-20526.html">https://www.suse.com/security/cve/CVE-2023-20526.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-20533.html">https://www.suse.com/security/cve/CVE-2023-20533.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-20566.html">https://www.suse.com/security/cve/CVE-2023-20566.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-20592.html">https://www.suse.com/security/cve/CVE-2023-20592.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215823">https://bugzilla.suse.com/show_bug.cgi?id=1215823</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1215831">https://bugzilla.suse.com/show_bug.cgi?id=1215831</a>
</li>
</ul>
</div>