CVEvulnerability

CVE-2021-45079

9.1 CRITICAL Published 2022-01-31 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-01-31
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS 2.0 ([email protected])
5.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:P
Weaknesses
CWE-476

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 configurations

• strongswan strongswan (>= 4.1.2 < 5.9.5) • debian debian linux 9.0 • debian debian linux 10.0 • debian debian linux 11.0 • fedoraproject extra packages for enterprise linux 7.0 • fedoraproject extra packages for enterprise linux 8.0 • fedoraproject extra packages for enterprise linux 9.0 • fedoraproject fedora 34 • fedoraproject fedora 35 • canonical ubuntu linux 14.04 • canonical ubuntu linux 16.04 • canonical ubuntu linux 18.04 • canonical ubuntu linux 20.04 • canonical ubuntu linux 21.10

Related

Weakness · CWE (1)

  • CWE-476 NULL Pointer Dereference weakness

References