Debian dla-4120 : libnet-easytcp-perl - security update

medium Nessus Plugin ID 233998

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Synopsis

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

Description

The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-4120 advisory.

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4120-1 [email protected] https://www.debian.org/lts/security/ Andrej Shadura April 08, 2025 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : libnet-easytcp-perl Version : 0.26-6+deb11u1 CVE ID : CVE-2024-56830

Net::EasyTCP Perl module includes encryption functionality that requires a secure random number generator. Until and including the version 0.26, this module used a random number generator without any such guarantees.
The reason for this was that it relied on Crypt::Random, a Perl module not available in Debian, and fell back to the insecure rand() built-in, so only a tiny fraction of its users who had Crypt::Random installed from CPAN used a suitable random number generator.

For Debian 11 bullseye, this problem has been fixed in version 0.26-6+deb11u1. The fallback to rand() has been removed, and the module will use Bytes::Random::Secure to get random numbers, which has been made a mandatory dependency. In the unlikely event Bytes::Random::Secure is still unavailable (e.g. manually removed), Net::EasyTCP will crash rather than use insecure random number generator.

We recommend that you upgrade your libnet-easytcp-perl packages.

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

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 libnet-easytcp-perl packages.

Plugin Details

Severity: Medium

ID: 233998

File Name: debian_DLA-4120.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/8/2025

Updated: 4/8/2025

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

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2024-56830

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

Vector: CVSS:3.0/AV:N/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:libnet-easytcp-perl

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/8/2025

Vulnerability Publication Date: 1/2/2025

Reference Information

CVE: CVE-2024-56830

Detections

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