<div class="container">
<h1>Recommended update for grub2</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2025:02772-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2025-08-12T17:39:25Z</td>
</tr>
<tr>
<th>Rating:</th>
<td>moderate</td>
</tr>
<tr>
<th>References:</th>
<td>
<ul>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1234959">bsc#1234959</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1246157">bsc#1246157</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1246231">bsc#1246231</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1246237">bsc#1246237</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-2024-56738.html">CVE-2024-56738</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-2024-56738</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">5.7</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2024-56738</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-2024-56738</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:L/I:N/A:N</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">Basesystem Module 15-SP6</li>
<li class="list-group-item">openSUSE Leap 15.6</li>
<li class="list-group-item">Server Applications Module 15-SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Desktop 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Real Time 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server 15 SP6</li>
<li class="list-group-item">SUSE Linux Enterprise Server for SAP Applications 15 SP6</li>
</ul>
</td>
</tr>
</tbody>
</table>
<p>An update that solves one vulnerability and has three security fixes can now be installed.</p>
<h2>Description:</h2>
<p>This update for grub2 fixes the following issues:</p>
<ul>
<li>CVE-2024-56738: Fixed side-channel attack due to not
constant-time algorithm in grub_crypto_memcmp (bsc#1234959)</li>
</ul>
<p>Other fixes:
- Fix test -f and -s do not work properly over the network files
served via tftp and http (bsc#1246157, bsc#1246237)
- Skip mount point in grub_find_device function (bsc#1246231)</p>
<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 15.6
<br/>
<code>zypper in -t patch SUSE-2025-2772=1 openSUSE-SLE-15.6-2025-2772=1</code>
</li>
<li class="list-group-item">
Basesystem Module 15-SP6
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-2772=1</code>
</li>
<li class="list-group-item">
Server Applications Module 15-SP6
<br/>
<code>zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP6-2025-2772=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
<ul>
<li>grub2-debuginfo-2.12-150600.8.34.1</li>
<li>grub2-2.12-150600.8.34.1</li>
<li>grub2-branding-upstream-2.12-150600.8.34.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (aarch64 s390x x86_64 i586)
<ul>
<li>grub2-debugsource-2.12-150600.8.34.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (noarch)
<ul>
<li>grub2-i386-pc-2.12-150600.8.34.1</li>
<li>grub2-x86_64-xen-debug-2.12-150600.8.34.1</li>
<li>grub2-snapper-plugin-2.12-150600.8.34.1</li>
<li>grub2-i386-xen-debug-2.12-150600.8.34.1</li>
<li>grub2-s390x-emu-extras-2.12-150600.8.34.1</li>
<li>grub2-x86_64-xen-extras-2.12-150600.8.34.1</li>
<li>grub2-arm64-efi-debug-2.12-150600.8.34.1</li>
<li>grub2-x86_64-efi-extras-2.12-150600.8.34.1</li>
<li>grub2-x86_64-xen-2.12-150600.8.34.1</li>
<li>grub2-x86_64-efi-debug-2.12-150600.8.34.1</li>
<li>grub2-i386-pc-debug-2.12-150600.8.34.1</li>
<li>grub2-i386-xen-2.12-150600.8.34.1</li>
<li>grub2-i386-xen-extras-2.12-150600.8.34.1</li>
<li>grub2-i386-efi-extras-2.12-150600.8.34.1</li>
<li>grub2-powerpc-ieee1275-extras-2.12-150600.8.34.1</li>
<li>grub2-systemd-sleep-plugin-2.12-150600.8.34.1</li>
<li>grub2-i386-efi-debug-2.12-150600.8.34.1</li>
<li>grub2-arm64-efi-extras-2.12-150600.8.34.1</li>
<li>grub2-powerpc-ieee1275-2.12-150600.8.34.1</li>
<li>grub2-powerpc-ieee1275-debug-2.12-150600.8.34.1</li>
<li>grub2-arm64-efi-2.12-150600.8.34.1</li>
<li>grub2-i386-efi-2.12-150600.8.34.1</li>
<li>grub2-i386-pc-extras-2.12-150600.8.34.1</li>
<li>grub2-x86_64-efi-2.12-150600.8.34.1</li>
</ul>
</li>
<li>
openSUSE Leap 15.6 (s390x)
<ul>
<li>grub2-s390x-emu-debug-2.12-150600.8.34.1</li>
<li>grub2-s390x-emu-2.12-150600.8.34.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64)
<ul>
<li>grub2-debuginfo-2.12-150600.8.34.1</li>
<li>grub2-2.12-150600.8.34.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP6 (noarch)
<ul>
<li>grub2-i386-pc-2.12-150600.8.34.1</li>
<li>grub2-systemd-sleep-plugin-2.12-150600.8.34.1</li>
<li>grub2-powerpc-ieee1275-2.12-150600.8.34.1</li>
<li>grub2-arm64-efi-2.12-150600.8.34.1</li>
<li>grub2-snapper-plugin-2.12-150600.8.34.1</li>
<li>grub2-x86_64-efi-2.12-150600.8.34.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP6 (aarch64 s390x x86_64)
<ul>
<li>grub2-debugsource-2.12-150600.8.34.1</li>
</ul>
</li>
<li>
Basesystem Module 15-SP6 (s390x)
<ul>
<li>grub2-s390x-emu-2.12-150600.8.34.1</li>
</ul>
</li>
<li>
Server Applications Module 15-SP6 (noarch)
<ul>
<li>grub2-x86_64-xen-2.12-150600.8.34.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2024-56738.html">https://www.suse.com/security/cve/CVE-2024-56738.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1234959">https://bugzilla.suse.com/show_bug.cgi?id=1234959</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1246157">https://bugzilla.suse.com/show_bug.cgi?id=1246157</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1246231">https://bugzilla.suse.com/show_bug.cgi?id=1246231</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1246237">https://bugzilla.suse.com/show_bug.cgi?id=1246237</a>
</li>
</ul>
</div>