Sicherheit: Zwei Probleme in Linux (Live Patch 31 SLE 12 SP5)

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# Security update for the Linux Kernel (Live Patch 31 for SLE 12 SP5)

Announcement ID: SUSE-SU-2023:1653-1
Rating: important
References:

* #1207190
* #1208909

Cross-References:

* CVE-2023-0266
* CVE-2023-26545

CVSS scores:

* CVE-2023-0266 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-0266 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-26545 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-26545 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

* SUSE Linux Enterprise High Performance Computing 12 SP5
* SUSE Linux Enterprise Live Patching 12-SP5
* SUSE Linux Enterprise Server 12 SP5
* SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves two vulnerabilities can now be installed.

## Description:

This update for the Linux Kernel 4.12.14-122_121 fixes several issues.

The following security issues were fixed:

* CVE-2023-26545: Fixed double free in net/mpls/af_mpls.c upon an allocation
failure (bsc#1208909).
* CVE-2023-0266: Fixed a use-after-free vulnerability inside the ALSA PCM
package. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 was missing locks that could
have been used in a use-after-free that could have resulted in a priviledge
escalation to gain ring0 access from the system user (bsc#1207190).

## Patch Instructions:

To install this SUSE Important update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

* SUSE Linux Enterprise Live Patching 12-SP5
zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2023-1653=1

## Package List:

* SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)
* kgraft-patch-4_12_14-122_121-default-11-2.3

## References:

* https://www.suse.com/security/cve/CVE-2023-0266.html
* https://www.suse.com/security/cve/CVE-2023-26545.html
* https://bugzilla.suse.com/show_bug.cgi?id=1207190
* https://bugzilla.suse.com/show_bug.cgi?id=1208909

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<div class="container">
<h1>Security update for the Linux Kernel (Live Patch 31 for SLE 12
SP5)</h1>

<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2023:1653-1</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=1207190">#1207190</a>
</li>

<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1208909">#1208909</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-2023-0266.html">CVE-2023-0266</a>
</li>

<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-26545.html">CVE-2023-26545</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-2023-0266</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-2023-0266</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-2023-26545</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-2023-26545</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 two vulnerabilities can now be
installed.</p>

<h2>Description:</h2>
<p>This update for the Linux Kernel 4.12.14-122_121 fixes several
issues.</p>
<p>The following security issues were fixed:</p>
<ul>
<li>CVE-2023-26545: Fixed double free in net/mpls/af_mpls.c upon an
allocation failure (bsc#1208909).</li>
<li>CVE-2023-0266: Fixed a use-after-free vulnerability inside the ALSA
PCM package. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 was missing locks that could have been used in a use-after-free that could have resulted in a priviledge escalation to gain ring0 access from the system user (bsc#1207190).</li>
</ul>

<h2>Patch Instructions:</h2>
<p>
To install this SUSE Important 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-SP5-2023-1653=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_121-default-11-2.3</li>

</ul>
</li>

</ul>

<h2>References:</h2>
<ul>

<li>
<a href="https://www.suse.com/security/cve/CVE-2023-0266.html">https://www.suse.com/security/cve/CVE-2023-0266.html</a>
</li>

<li>
<a href="https://www.suse.com/security/cve/CVE-2023-26545.html">https://www.suse.com/security/cve/CVE-2023-26545.html</a>
</li>

<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1207190">https://bugzilla.suse.com/show_bug.cgi?id=1207190</a>
</li>

<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1208909">https://bugzilla.suse.com/show_bug.cgi?id=1208909</a>
</li>

</ul>

</div>

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