UBUNTU-CVE-2019-9498

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UBUNTU-CVE-2019-9498

Summary:

Details: The implementations of EAP-PWD in hostapd EAP Server, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may be able to use invalid scalar/element values to complete authentication, gaining session key and network access without needing or learning the password. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.

References: https://ubuntu.com/security/CVE-2019-9498, https://w1.fi/security/2019-4/, https://ubuntu.com/security/notices/USN-3944-1, https://www.cve.org/CVERecord?id=CVE-2019-9498