SUSE alert openSUSE-SU-2026:20642-1 (libsodium)

From:
             
 
null@suse.de
To:
             
 
security-announce@lists.opensuse.org
Subject:
             
 
openSUSE-SU-2026:20642-1: moderate: Security update for libsodium
Date:
             
 
Thu, 30 Apr 2026 15:13:41 +0200
Message-ID:
             
 
<20260430131341.40CD5F79C@maintenance.suse.de>
Archive-link:
             
 
Article
openSUSE security update: security update for libsodium
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:20642-1
Rating: moderate
References:

  * bsc#1255764
  * bsc#1256070



Cross-References:

  * CVE-2025-15444
  * CVE-2025-69277



CVSS scores:

  * CVE-2025-15444 ( SUSE ): 6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2025-69277 ( SUSE ): 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
  * CVE-2025-69277 ( SUSE ): 4.8 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

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves 2 vulnerabilities and has 2 bug fixes can now be installed.

Description:

This update for libsodium fixes the following issues:

Security fixes:

- CVE-2025-15444: Cryptographic bypass via improper elliptic curve point validation (bsc#1256070).
- 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).

Other fixes:

- Update to 1.0.21
 * The new crypto_ipcrypt_* functions implement mechanisms for securely
 encrypting and anonymizing IP addresses.
 * 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.
 * XOF: the crypto_xof_shake* and crypto_xof_turboshake* functions are
 * 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.
 * Performance of AES256-GCM and AEGIS on ARM has been improved with some
 compilers
 * 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.
 * Security: crypto_core_ed25519_is_valid_point() now properly rejects
 small-order points that are not in the main subgroup
 * ((nonnull)) attributes have been relaxed on some crypto_stream* functions to
 allow NULL output buffers when the output length is zero
 * A cross-compilation issue with old clang versions has been fixed
 * crypto_aead_aes256gcm_is_available is exported to JavaScript
 * Security: memory fences have been added after MAC verification in AEAD to
 prevent speculative access to plaintext before authentication is complete
 * Assembly files now include .gnu.property notes for proper IBT and Shadow
 Stack support when building with CET instrumentation.


Patch instructions:

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

- openSUSE Leap 16.0

   zypper in -t patch openSUSE-Leap-16.0-649=1

Package List:

- openSUSE Leap 16.0:

  libsodium-devel-1.0.21-160000.1.1
  libsodium26-1.0.21-160000.1.1

References:

  * https://www.suse.com/security/cve/CVE-2025-15444.html
  * https://www.suse.com/security/cve/CVE-2025-69277.html