<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-2023:3324-1</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=1087082">#1087082</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1126703">#1126703</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1206418">#1206418</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1207561">#1207561</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1209779">#1209779</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1210584">#1210584</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1211738">#1211738</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1211867">#1211867</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1212502">#1212502</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213059">#1213059</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213167">#1213167</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213251">#1213251</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213286">#1213286</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213287">#1213287</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213585">#1213585</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213588">#1213588</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-2018-20784.html">CVE-2018-20784</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2018-3639.html">CVE-2018-3639</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2022-40982.html">CVE-2022-40982</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-0459.html">CVE-2023-0459</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-1637.html">CVE-2023-1637</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-20569.html">CVE-2023-20569</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-20593.html">CVE-2023-20593</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-2985.html">CVE-2023-2985</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-3106.html">CVE-2023-3106</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-3268.html">CVE-2023-3268</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-35001.html">CVE-2023-35001</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-3567.html">CVE-2023-3567</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-3611.html">CVE-2023-3611</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2023-3776.html">CVE-2023-3776</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-2018-20784</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.9</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2018-20784</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-2018-20784</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">9.8</span>
<span class="cvss-vector">CVSS:3.0/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-2018-3639</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.3</span>
<span class="cvss-vector">CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2018-3639</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-2018-3639</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">5.5</span>
<span class="cvss-vector">CVSS:3.0/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-2022-40982</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.2</span>
<span class="cvss-vector">CVSS:3.1/AV:L/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-2022-40982</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-0459</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.7</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-0459</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:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-1637</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.8</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-1637</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-2023-20569</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.6</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-20593</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.2</span>
<span class="cvss-vector">CVSS:3.1/AV:L/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-2023-20593</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-2023-2985</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.4</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-2985</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-2023-3106</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.6</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-3106</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.6</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-3268</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.1</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-3268</span>
<span class="cvss-source">
(
NVD
):
</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:N/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-35001</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-2023-35001</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-2023-3567</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-2023-3567</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">6.7</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-3611</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.7</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-3611</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-2023-3776</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.7</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2023-3776</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 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise Server 12 SP2</li>
<li class="list-group-item">SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves 14 vulnerabilities and has two fixes can now be installed.</p>
<h2>Description:</h2>
<p>The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes.</p>
<p>The following security bugs were fixed:</p>
<ul>
<li>CVE-2018-20784: Fixed a denial of service (infinite loop in update_blocked_averages) by mishandled leaf cfs_rq in kernel/sched/fair.c (bsc#1126703).</li>
<li>CVE-2018-3639: Fixed Speculative Store Bypass aka "Memory Disambiguation" (bsc#1087082).</li>
<li>CVE-2022-40982: Fixed transient execution attack called "Gather Data Sampling" (bsc#1206418).</li>
<li>CVE-2023-0459: Fixed information leak in __uaccess_begin_nospec (bsc#1211738).</li>
<li>CVE-2023-1637: Fixed vulnerability that could lead to unauthorized access to CPU memory after resuming CPU from suspend-to-RAM (bsc#1209779).</li>
<li>CVE-2023-20569: Fixed side channel attack ‘Inception’ or ‘RAS Poisoning’ (bsc#1213287).</li>
<li>CVE-2023-20593: Fixed a ZenBleed issue in "Zen 2" CPUs that could allow an attacker to potentially access sensitive information (bsc#1213286).</li>
<li>CVE-2023-2985: Fixed an use-after-free vulnerability in hfsplus_put_super in fs/hfsplus/super.c that could allow a local user to cause a denial of service (bsc#1211867).</li>
<li>CVE-2023-3106: Fixed crash in XFRM_MSG_GETSA netlink handler (bsc#1213251).</li>
<li>CVE-2023-3268: Fixed an out of bounds memory access flaw in relay_file_read_start_pos in the relayfs (bsc#1212502).</li>
<li>CVE-2023-35001: Fixed an out-of-bounds memory access flaw in nft_byteorder that could allow a local attacker to escalate their privilege (bsc#1213059).</li>
<li>CVE-2023-3567: Fixed a use-after-free in vcs_read in drivers/tty/vt/vc_screen.c (bsc#1213167).</li>
<li>CVE-2023-3611: Fixed an out-of-bounds write in net/sched sch_qfq(bsc#1213585).</li>
<li>CVE-2023-3776: Fixed improper refcount update in cls_fw leads to use-after-free (bsc#1213588).</li>
</ul>
<p>The following non-security bugs were fixed:</p>
<ul>
<li>net/sched: sch_qfq: refactor parsing of netlink parameters (bsc#1213585).</li>
<li>ubi: Fix failure attaching when vid_hdr offset equals to (sub)page size (bsc#1210584).</li>
<li>ubi: ensure that VID header offset + VID header size <= alloc, size (bsc#1210584).</li>
<li>x86: Treat R_X86_64_PLT32 as R_X86_64_PC32 (git-fixes) No it's not git-fixes it's used to make sle12-sp2 compile with newer toolchain to make the life of all the poor souls maintaining this ancient kernel on their modern machines, a little bit easier....</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 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 Server 12 SP2 BCL 12-SP2
<br/>
<code>zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2023-3324=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (nosrc x86_64)
<ul>
<li>kernel-default-4.4.121-92.208.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (x86_64)
<ul>
<li>kernel-default-base-debuginfo-4.4.121-92.208.1</li>
<li>kernel-syms-4.4.121-92.208.1</li>
<li>kernel-default-base-4.4.121-92.208.1</li>
<li>kernel-default-debuginfo-4.4.121-92.208.1</li>
<li>kernel-default-debugsource-4.4.121-92.208.1</li>
<li>kernel-default-devel-4.4.121-92.208.1</li>
</ul>
</li>
<li>
SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (noarch)
<ul>
<li>kernel-source-4.4.121-92.208.1</li>
<li>kernel-devel-4.4.121-92.208.1</li>
<li>kernel-macros-4.4.121-92.208.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2018-20784.html">https://www.suse.com/security/cve/CVE-2018-20784.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2018-3639.html">https://www.suse.com/security/cve/CVE-2018-3639.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2022-40982.html">https://www.suse.com/security/cve/CVE-2022-40982.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-0459.html">https://www.suse.com/security/cve/CVE-2023-0459.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-1637.html">https://www.suse.com/security/cve/CVE-2023-1637.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-20569.html">https://www.suse.com/security/cve/CVE-2023-20569.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-20593.html">https://www.suse.com/security/cve/CVE-2023-20593.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-2985.html">https://www.suse.com/security/cve/CVE-2023-2985.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-3106.html">https://www.suse.com/security/cve/CVE-2023-3106.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-3268.html">https://www.suse.com/security/cve/CVE-2023-3268.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-35001.html">https://www.suse.com/security/cve/CVE-2023-35001.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-3567.html">https://www.suse.com/security/cve/CVE-2023-3567.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-3611.html">https://www.suse.com/security/cve/CVE-2023-3611.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2023-3776.html">https://www.suse.com/security/cve/CVE-2023-3776.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1087082">https://bugzilla.suse.com/show_bug.cgi?id=1087082</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1126703">https://bugzilla.suse.com/show_bug.cgi?id=1126703</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1206418">https://bugzilla.suse.com/show_bug.cgi?id=1206418</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1207561">https://bugzilla.suse.com/show_bug.cgi?id=1207561</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1209779">https://bugzilla.suse.com/show_bug.cgi?id=1209779</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1210584">https://bugzilla.suse.com/show_bug.cgi?id=1210584</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1211738">https://bugzilla.suse.com/show_bug.cgi?id=1211738</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1211867">https://bugzilla.suse.com/show_bug.cgi?id=1211867</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1212502">https://bugzilla.suse.com/show_bug.cgi?id=1212502</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213059">https://bugzilla.suse.com/show_bug.cgi?id=1213059</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213167">https://bugzilla.suse.com/show_bug.cgi?id=1213167</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213251">https://bugzilla.suse.com/show_bug.cgi?id=1213251</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213286">https://bugzilla.suse.com/show_bug.cgi?id=1213286</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213287">https://bugzilla.suse.com/show_bug.cgi?id=1213287</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213585">https://bugzilla.suse.com/show_bug.cgi?id=1213585</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1213588">https://bugzilla.suse.com/show_bug.cgi?id=1213588</a>
</li>
</ul>
</div>