Security update for libsodium

Announcement ID: SUSE-SU-2026:21393-1
Release Date: 2026-04-28T15:27:44Z
Rating: moderate
References:
Cross-References:
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-2025-15444 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • 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
  • 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 ( NVD ): 4.5 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Affected Products:
  • SUSE Linux Micro 6.2

An update that solves two vulnerabilities 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 SUSE 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 Micro 6.2
    zypper in -t patch SUSE-SL-Micro-6.2-649=1

Package List:

  • SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    • libsodium26-debuginfo-1.0.21-160000.1.1
    • libsodium26-1.0.21-160000.1.1
    • libsodium-debugsource-1.0.21-160000.1.1

References: