SUSE SLED15 / SLES15 / openSUSE 15 Security Update : gnutls (SUSE-SU-2026:0829-1)

medium Nessus Plugin ID 301304

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:0829-1 advisory.

Security issue:

- CVE-2025-14831: excessive resource consumption when verifying specially crafted malicious certificates containing a large number of name constraints and subject alternative names (bsc#1257960).

Other updates and bugfixes:

- update libgnutls package to avoid binder getting calculated with SHA256 (bsc#1258083, jsc#PED-15752, jsc#PED-15753).
- lib/psk: Add gnutls_psk_allocate_{client,server}_credentials2
- tests/psk-file: Add testing for _credentials2 functions
- lib/psk: add null check for binder algo
- pre_shared_key: fix memleak when retrying with different binder algo
- pre_shared_key: add null check on pskcred

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 301304

File Name: suse_SU-2026-0829-1.nasl

Version: 1.1

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 3/6/2026

Updated: 3/6/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2025-14831

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libgnutlsxx30, p-cpe:/a:novell:suse_linux:libgnutls30-32bit, p-cpe:/a:novell:suse_linux:libgnutlsxx-devel, p-cpe:/a:novell:suse_linux:libgnutls30, p-cpe:/a:novell:suse_linux:libgnutls-devel, p-cpe:/a:novell:suse_linux:gnutls, cpe:/o:novell:suse_linux:15

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 3/5/2026

Vulnerability Publication Date: 2/9/2026

Reference Information

CVE: CVE-2025-14831

IAVA: 2026-A-0147

SuSE: SUSE-SU-2026:0829-1

Detections

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