Debian dla-4435 : libsodium-dev - security update

medium Nessus Plugin ID 282343

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4435 advisory.

- ----------------------------------------------------------------------- Debian LTS Advisory DLA-4435-1 [email protected] https://www.debian.org/lts/security/ Utkarsh Gupta January 07, 2026 https://wiki.debian.org/LTS
- -----------------------------------------------------------------------

Package : libsodium Version : 1.0.18-1+deb11u1 CVE ID : CVE-2025-69277 Debian Bug : 1124374

It was discovered that the crypto_core_ed25519_is_valid_point() function of the Sodium cryptography library mishandled checks for valid elliptic curve points.

For Debian 11 bullseye, this problem has been fixed in version 1.0.18-1+deb11u1.

We recommend that you upgrade your libsodium packages.

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

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

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the libsodium-dev packages.

Plugin Details

Severity: Medium

ID: 282343

File Name: debian_DLA-4435.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 1/7/2026

Updated: 1/7/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

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

CVSS Score Source: CVE-2025-69277

CVSS v3

Risk Factor: Medium

Base Score: 4.5

Temporal Score: 3.9

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libsodium-dev, p-cpe:/a:debian:debian_linux:libsodium23

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/7/2026

Vulnerability Publication Date: 12/31/2025

Reference Information

CVE: CVE-2025-69277

Detections

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