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Debian dla-4492 : gnutls-bin - security update

medium Nessus Plugin ID 299974

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4492 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-4492-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin February 25, 2026 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : gnutls28 Version : 3.7.1-5+deb11u9 CVE ID : CVE-2025-9820 CVE-2025-14831 Debian Bug : 1121146

 Vulnerabilities were found in GnuTLS, a portable library which implements the Transport Layer Security and Datagram Transport Layer Security protocols, which may lead to Denial of Service.

 CVE-2025-9820

 An out-of-bound write issue was discovered when a PKCS#11 token is initialized with the `gnutls_pkcs11_token_init()` function and it is passed a token label longer than 32 characters.

 CVE-2025-14831

 Tim Scheckenbach discovered that verifying specially crafted malicious certificates containing a large number of name constraints and subject alternative names (SANs) could lead to resource exhaustion.

 For Debian 11 bullseye, these problems have been fixed in version 3.7.1-5+deb11u9.

 We recommend that you upgrade your gnutls28 packages.

 For the detailed security status of gnutls28 please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/gnutls28

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
 signature.asc Description: PGP signature

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

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

Solution

Upgrade the gnutls-bin packages.

See Also

https://security-tracker.debian.org/tracker/source-package/gnutls28

https://security-tracker.debian.org/tracker/CVE-2025-14831

https://security-tracker.debian.org/tracker/CVE-2025-9820

https://packages.debian.org/source/bullseye/gnutls28

Plugin Details

Severity: Medium

ID: 299974

File Name: debian_DLA-4492.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2/26/2026

Updated: 2/26/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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:debian:debian_linux:libgnutls28-dev, p-cpe:/a:debian:debian_linux:libgnutls-dane0, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libgnutls30, p-cpe:/a:debian:debian_linux:libgnutlsxx28, p-cpe:/a:debian:debian_linux:gnutls-doc, p-cpe:/a:debian:debian_linux:guile-gnutls, p-cpe:/a:debian:debian_linux:gnutls-bin, p-cpe:/a:debian:debian_linux:libgnutls-openssl27

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 2/25/2026

Vulnerability Publication Date: 11/21/2025

Reference Information

CVE: CVE-2025-14831, CVE-2025-9820