ESB-2026.4543

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.4543 Security update for libsodium 5 May 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: libsodium Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2025-15444 CVE-2025-69277 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-202621422-1 Comment: CVSS (Max): 6.8 CVE-2025-15444 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N EPSS (Max): 0.0% (6th) CVE-2025-15444 2026-05-03 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for libsodium Announcement ID: SUSE-SU-2026:21422-1 Release Date: 2026-04-28T15:27:44Z Rating: moderate o bsc#1255764 References: o bsc#1256070 o CVE-2025-15444 Cross-References: o CVE-2025-69277 o 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 o 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 o CVE-2025-69277 ( SUSE ): 4.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L CVSS scores: /UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N o 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 o 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 o SUSE Linux Enterprise Server 16.0 Products: o SUSE Linux Enterprise Server for SAP applications 16.0 An update that solves two vulnerabilities can now be installed. Description: This update for libsodium fixes the following issues: Security fixes: o CVE-2025-15444: Cryptographic bypass via improper elliptic curve point validation (bsc#1256070). o 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: o Update to 1.0.21 o The new crypto_ipcrypt_* functions implement mechanisms for securely encrypting and anonymizing IP addresses. o 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. o XOF: the crypto_xof_shake and crypto_xof_turboshake functions are o 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. o Performance of AES256-GCM and AEGIS on ARM has been improved with some compilers o 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. o Security: crypto_core_ed25519_is_valid_point() now properly rejects small-order points that are not in the main subgroup o ((nonnull)) attributes have been relaxed on some crypto_stream* functions to allow NULL output buffers when the output length is zero o A cross-compilation issue with old clang versions has been fixed o crypto_aead_aes256gcm_is_available is exported to JavaScript o Security: memory fences have been added after MAC verification in AEAD to prevent speculative access to plaintext before authentication is complete o 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: o SUSE Linux Enterprise Server for SAP applications 16.0 zypper in -t patch SUSE-SLES-16.0-649=1 o SUSE Linux Enterprise Server 16.0 zypper in -t patch SUSE-SLES-16.0-649=1 Package List: o SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64) libsodium26-debuginfo-1.0.21-160000.1.1 libsodium26-1.0.21-160000.1.1 libsodium-devel-1.0.21-160000.1.1 libsodium-debugsource-1.0.21-160000.1.1 o SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64) libsodium26-debuginfo-1.0.21-160000.1.1 libsodium26-1.0.21-160000.1.1 libsodium-devel-1.0.21-160000.1.1 libsodium-debugsource-1.0.21-160000.1.1 References: o https://www.suse.com/security/cve/CVE-2025-15444.html o https://www.suse.com/security/cve/CVE-2025-69277.html o https://bugzilla.suse.com/show_bug.cgi?id=1255764 o https://bugzilla.suse.com/show_bug.cgi?id=1256070 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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