CVE-2021-45079
CRITICAL9.1EPSS 0.12%strongswan - security update
Published: 1/31/2022Modified: 4/28/2026
Also known as:ALPINE-CVE-2021-45079DEBIAN-CVE-2021-45079
Description
In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too early without actually authenticating the client and (in the case of EAP methods with mutual authentication and EAP-only authentication for IKEv2) even without server authentication.
Affected packages (4)
- Alpine/strongswanfrom 0, < 5.9.1-r2
- Debian/strongswanfrom 0, < 5.9.1-1+deb11u2
- Debian/strongswanfrom 0, < 5.5.1-4+deb9u6
- Debian/strongswanfrom 0, < 5.7.2-1+deb10u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |