Resource exhaustion in Stormshield Network Security
CVE-2022-40617
strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.017 (76.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Stormshield Stormshield_network_security
- Strongswan
- Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
- Debian Debian_linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 37
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org
- cve@mitre.org (vendor-advisory)
Frequently asked questions
- What is CVE-2022-40617?
- CVE-2022-40617 is a high-severity vulnerability in Stormshield Network Security, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2022-10-31.
- How severe is CVE-2022-40617?
- High severity. CVSS v3 base score is 7.5 out of 10.