CVE Vulnerabilities

CVE-2023-26463

Improper Certificate Validation

Published: Apr 15, 2023 | Modified: May 17, 2023
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named public for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.

Weakness

The product does not validate, or incorrectly validates, a certificate.

Affected Software

Name Vendor Start Version End Version
Strongswan Strongswan 5.9.8 (including) 5.9.8 (including)
Strongswan Strongswan 5.9.9 (including) 5.9.9 (including)

Potential Mitigations

References