CVE-2019-9498

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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://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/, http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html, https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html, https://seclists.org/bugtraq/2019/May/40, https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc, https://www.synology.com/security/advisory/Synology_SA_19_16, https://w1.fi/security/2019-4/