SUSE-SU-2026:20962-1: moderate: Security update for gnutls

[SLE-UPDATES]

# Security update for gnutls

Announcement ID: SUSE-SU-2026:20962-1  
Release Date: 2026-03-30T14:33:01Z  
Rating: moderate  
References:

  * bsc#1254132
  * bsc#1257960
  * bsc#1258083
  * jsc#PED-15752
  * jsc#PED-15753

  
Cross-References:

  * CVE-2025-14831
  * CVE-2025-9820

  
CVSS scores:

  * 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
  * 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
  * CVE-2025-14831 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * 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
  * 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 Products:

  * SUSE Linux Micro 6.2

  
  
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:

  * CVE-2025-14831: Fixed DoS via excessive resource consumption during
    certificate verification. (bsc#1257960)
  * CVE-2025-9820: Fixed a buffer overflow in gnutls_pkcs11_token_init.
    (bsc#1254132)
  * 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:

  * SUSE Linux Micro 6.2  
    zypper in -t patch SUSE-SL-Micro-6.2-464=1

## Package List:

  * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    * libgnutls30-3.8.10-160000.2.1
    * gnutls-debuginfo-3.8.10-160000.2.1
    * libgnutls30-debuginfo-3.8.10-160000.2.1
    * gnutls-debugsource-3.8.10-160000.2.1
    * gnutls-3.8.10-160000.2.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-14831.html
  * https://www.suse.com/security/cve/CVE-2025-9820.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1254132
  * https://bugzilla.suse.com/show_bug.cgi?id=1257960
  * https://bugzilla.suse.com/show_bug.cgi?id=1258083
  * https://jira.suse.com/browse/PED-15752
  * https://jira.suse.com/browse/PED-15753

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