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ESB-2026.3476 PUBLISHED CVSS 5.300000190734863 MEDIUM

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3476 Security update for gnutls 10 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: gnutls Publisher: SUSE Operating System: SUSE Resolution: Patch/Upgrade CVE Names: CVE-2025-9820 CVE-2025-14831 Original Bulletin: https://www.suse.com/support/update/announcement/2026/suse-su-202620984-1 Comment: CVSS (Max): 5.3 CVE-2025-14831 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) CVSS Source: SUSE Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L EPSS (Max): 0.1% (19th) CVE-2025-14831 2026-04-09 - --------------------------BEGIN INCLUDED TEXT-------------------- Security update for gnutls Announcement ID: SUSE-SU-2026:20984-1 Release Date: 2026-03-30T14:36:07Z Rating: moderate o bsc#1254132 o bsc#1257960 References: o bsc#1258083 o jsc#PED-15752 o jsc#PED-15753 o CVE-2025-14831 Cross-References: o CVE-2025-9820 o CVE-2025-14831 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N /UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N o CVE-2025-14831 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N /S:U/C:N/I:N/A:L o CVE-2025-14831 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/ CVSS scores: S:U/C:N/I:N/A:L o CVE-2025-9820 ( SUSE ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:L o CVE-2025-9820 ( NVD ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/ S:U/C:N/I:N/A:L Affected o SUSE Linux Enterprise Server - BCI 16.0 Products: An update that solves two vulnerabilities, contains two features and has one fix can now be installed. Description: This update for gnutls fixes the following issues: o CVE-2025-14831: Fixed DoS via excessive resource consumption during certificate verification. (bsc#1257960) o CVE-2025-9820: Fixed a buffer overflow in gnutls_pkcs11_token_init. (bsc# 1254132) o Add the functionality to allow to specify the hash algorithm for the PSK. This fixes a bug in the current implementation where the binder is always calculated with SHA256. (bsc#1258083, jsc#PED-15752, jsc#PED-15753) 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 - BCI 16.0 zypper in -t patch SUSE-SLES-16.0-464=1 Package List: o SUSE Linux Enterprise Server - BCI 16.0 (aarch64 ppc64le s390x x86_64) gnutls-debugsource-3.8.10-160000.2.1 libgnutls-devel-3.8.10-160000.2.1 libgnutls30-3.8.10-160000.2.1 gnutls-3.8.10-160000.2.1 libgnutlsxx-devel-3.8.10-160000.2.1 libgnutlsxx30-debuginfo-3.8.10-160000.2.1 libgnutls30-debuginfo-3.8.10-160000.2.1 gnutls-debuginfo-3.8.10-160000.2.1 libgnutlsxx30-3.8.10-160000.2.1 References: o https://www.suse.com/security/cve/CVE-2025-14831.html o https://www.suse.com/security/cve/CVE-2025-9820.html o https://bugzilla.suse.com/show_bug.cgi?id=1254132 o https://bugzilla.suse.com/show_bug.cgi?id=1257960 o https://bugzilla.suse.com/show_bug.cgi?id=1258083 o https://jira.suse.com/browse/PED-15752 o https://jira.suse.com/browse/PED-15753 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================

Risk Scores

CVSS v3.1
5.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Products

VendorProductVersions
SUSEgnutls

Timeline

References

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