CVE-2019-9498CWE-346

CVE-2019-9498: vulnerability in Wi-Fi Alliance hostapd with SAE support

The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-Commit

Published · Updated

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3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 2.2%
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.
Affected products
Wi-Fi Alliance · hostapd with EAP-pwd supportWi-Fi Alliance · hostapd with SAE supportWi-Fi Alliance · wpa_supplicant with EAP-pwd supportWi-Fi Alliance · wpa_supplicant with SAE support
Related CVEs — Wi-Fi Alliance hostapd with SAE support

In the same product, most dangerous first.

CVE-2019-9497—The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-CommitEPSS 5.0%CVE-2019-9496—An invalid authentication sequence could result in the hostapd process terminating due to missing state validation stepsEPSS 4.6%CVE-2019-9494—The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side-channel attacksEPSS 3.9%CVE-2019-9495—The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patternsEPSS 3.5%CVE-2019-9499—The implementations of EAP-PWD in wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-CommitEPSS 2.2%