PT-2024-9114 · Fort+3 · Fort+3

Haya Schulmann + 1 · Published 2024-08-24 · Updated 2025-10-08 · CVE-2024-45237

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Fort versions prior to 1.6.3

Description: The issue is related to a buffer overflow in the stack due to improper sanitization of the length of a Key Usage extension in a resource certificate served by a malicious RPKI repository. This can allow a remote attacker to execute arbitrary code. A malicious RPKI repository that descends from a trusted Trust Anchor can serve a resource certificate containing a Key Usage extension composed of more than two bytes of data, which Fort writes into a 2-byte buffer without properly sanitizing its length, leading to a buffer overflow.

Recommendations: For versions prior to 1.6.3, update to version 1.6.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the RPKI repository or disabling the use of resource certificates with Key Usage extensions until a patch is available. Avoid using the Key Usage extension in resource certificates served by RPKI repositories until the issue is resolved.

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2024-10800

CVE-2024-45237

DLA-4066-1

USN-7813-1

Affected Products

Debian

Fort

Linuxmint

Ubuntu

References · 27

• https://ubuntu.com/security/CVE-2024-45234 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-45237 · Security Note
• https://nicmx.github.io/FORT-validator/CVE.html · Patch
• https://ubuntu.com/security/CVE-2024-45235 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-45237 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-45237 · Security Note
• https://osv.dev/vulnerability/DLA-4066-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-45239 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-45237 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-48943 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7813-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-45237 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7813-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-45236 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-10800 · Security Note