<div class="container">
<h1>Security update for libsodium</h1>
<table class="table table-striped table-bordered">
<tbody>
<tr>
<th>Announcement ID:</th>
<td>SUSE-SU-2026:21393-1</td>
</tr>
<tr>
<th>Release Date:</th>
<td>2026-04-28T15:27:44Z</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=1255764">bsc#1255764</a>
</li>
<li style="display: inline;">
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1256070">bsc#1256070</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-2025-15444.html">CVE-2025-15444</a>
</li>
<li style="display: inline;">
<a href="https://www.suse.com/security/cve/CVE-2025-69277.html">CVE-2025-69277</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-2025-15444</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">6.8</span>
<span class="cvss-vector">CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-15444</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-2025-69277</span>
<span class="cvss-source">
(
SUSE
):
</span>
<span class="cvss-score">4.8</span>
<span class="cvss-vector">CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-69277</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:L/UI:N/S:U/C:L/I:L/A:N</span>
</li>
<li class="list-group-item">
<span class="cvss-reference">CVE-2025-69277</span>
<span class="cvss-source">
(
NVD
):
</span>
<span class="cvss-score">4.5</span>
<span class="cvss-vector">CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N</span>
</li>
</ul>
</td>
</tr>
<tr>
<th>Affected Products:</th>
<td>
<ul class="list-group">
<li class="list-group-item">SUSE Linux Micro 6.2</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 libsodium fixes the following issues:</p>
<p>Security fixes:</p>
<ul>
<li>CVE-2025-15444: Cryptographic bypass via improper elliptic curve point validation (bsc#1256070).</li>
<li>CVE-2025-69277: incorrect validation of elliptic curve points certain custom cryptography or untrusted data to
crypto_core_ed25519_is_valid_point function (bsc#1255764).</li>
</ul>
<p>Other fixes:</p>
<ul>
<li>Update to 1.0.21</li>
<li>The new crypto_ipcrypt_* functions implement mechanisms for securely
encrypting and anonymizing IP addresses.</li>
<li>The sodium_bin2ip and sodium_ip2bin helper functions have been added to
complement the crypto_ipcrypt_* functions and easily convert addresses
between bytes and strings.</li>
<li>XOF: the crypto_xof_shake<em> and crypto_xof_turboshake</em> functions are</li>
<li>standard
extendable output functions. From input of any length, they can derive
output of any length with the same properties as hash functions. These
primitives are required by many post-quantum mechanisms, but can also be
used for a wide range of applications, including key derivation, session
encryption and more.</li>
<li>Performance of AES256-GCM and AEGIS on ARM has been improved with some
compilers</li>
<li>Security: optblockers have been introduced in critical code paths to prevent
compilers from introducing unwanted side channels via conditional jumps. This
was observed on RISC-V targets with specific compilers and options.</li>
<li>Security: crypto_core_ed25519_is_valid_point() now properly rejects
small-order points that are not in the main subgroup</li>
<li>((nonnull)) attributes have been relaxed on some crypto_stream* functions to
allow NULL output buffers when the output length is zero</li>
<li>A cross-compilation issue with old clang versions has been fixed</li>
<li>crypto_aead_aes256gcm_is_available is exported to JavaScript</li>
<li>Security: memory fences have been added after MAC verification in AEAD to
prevent speculative access to plaintext before authentication is complete</li>
<li>Assembly files now include .gnu.property notes for proper IBT and Shadow
Stack support when building with CET instrumentation.</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 Micro 6.2
<br/>
<code>zypper in -t patch SUSE-SL-Micro-6.2-649=1</code>
</li>
</ul>
<h2>Package List:</h2>
<ul>
<li>
SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
<ul>
<li>libsodium26-debuginfo-1.0.21-160000.1.1</li>
<li>libsodium26-1.0.21-160000.1.1</li>
<li>libsodium-debugsource-1.0.21-160000.1.1</li>
</ul>
</li>
</ul>
<h2>References:</h2>
<ul>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-15444.html">https://www.suse.com/security/cve/CVE-2025-15444.html</a>
</li>
<li>
<a href="https://www.suse.com/security/cve/CVE-2025-69277.html">https://www.suse.com/security/cve/CVE-2025-69277.html</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1255764">https://bugzilla.suse.com/show_bug.cgi?id=1255764</a>
</li>
<li>
<a href="https://bugzilla.suse.com/show_bug.cgi?id=1256070">https://bugzilla.suse.com/show_bug.cgi?id=1256070</a>
</li>
</ul>
</div>