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Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS : FORT Validator vulnerabilities (USN-7813-1)

critical Nessus Plugin ID 269794

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7813-1 advisory.

 Niklas Vogel and Haya Schulmann discovered that FORT Validator did not perform proper input validation when parsing certain RPKI repository data. A remote attacker could possibly use this issue to cause FORT Validator to crash, resulting in a denial of service. (CVE-2024-45234, CVE-2024-45235, CVE-2024-45236, CVE-2024-45238, CVE-2024-45239)

 Niklas Vogel and Haya Schulmann discovered that FORT Validator did not perform proper input validation when parsing resource certificates. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2024-45237)

 Koen van Hove discovered that FORT Validator did not limit the duration of data transfers when fetching RPKI repository data. A remote attacker could possibly use this issue to cause FORT Validator to consume excessive resources, resulting in a denial of service. (CVE-2024-48943)

Tenable has extracted the preceding description block directly from the Ubuntu 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

Update the affected fort-validator package.

See Also

https://ubuntu.com/security/notices/USN-7813-1

Plugin Details

Severity: Critical

ID: 269794

File Name: ubuntu_USN-7813-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/9/2025

Updated: 10/9/2025

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2024-45237

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:fort-validator

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/8/2025

Vulnerability Publication Date: 8/24/2024

Reference Information

CVE: CVE-2024-45234, CVE-2024-45235, CVE-2024-45236, CVE-2024-45237, CVE-2024-45238, CVE-2024-45239, CVE-2024-48943

USN: 7813-1