Description
An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing a Key Usage extension composed of more than two bytes of data. Fort writes this string into a 2-byte buffer without properly sanitizing its length, leading to a buffer overflow.
Published: 2024-08-24
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4066-1 fort-validator security update
Ubuntu USN Ubuntu USN USN-7813-1 FORT Validator vulnerabilities
History

Mon, 03 Nov 2025 21:30:00 +0000

Type Values Removed Values Added
References

Tue, 27 Aug 2024 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Nicmx
Nicmx fort-validator
CPEs cpe:2.3:a:nicmx:fort-validator:*:*:*:*:*:*:*:*
Vendors & Products Nicmx
Nicmx fort-validator

Mon, 26 Aug 2024 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Fort Validator Project
Fort Validator Project fort Validator
Weaknesses CWE-120
CPEs cpe:2.3:a:fort_validator_project:fort_validator:*:*:*:*:*:*:*:*
Vendors & Products Fort Validator Project
Fort Validator Project fort Validator
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sat, 24 Aug 2024 22:45:00 +0000

Type Values Removed Values Added
Description An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) a resource certificate containing a Key Usage extension composed of more than two bytes of data. Fort writes this string into a 2-byte buffer without properly sanitizing its length, leading to a buffer overflow.
References

Subscriptions

Fort Validator Project Fort Validator
Nicmx Fort-validator
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-11-03T20:39:06.541Z

Reserved: 2024-08-24T00:00:00.000Z

Link: CVE-2024-45237

cve-icon Vulnrichment

Updated: 2025-11-03T20:39:06.541Z

cve-icon NVD

Status : Modified

Published: 2024-08-24T23:15:04.243

Modified: 2025-11-03T21:16:20.580

Link: CVE-2024-45237

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses