CVE-2019-9496CWE-642

CVE-2019-9496: vulnerability in Wi-Fi Alliance hostapd with SAE support

An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps

Published · Updated

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3Vexday Risk Score

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

ssvc Trackepss 4.6%
An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
Affected products
Wi-Fi Alliance · hostapd with SAE 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-2019-9494—The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side-channel attacksEPSS 3.9%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%CVE-2019-9498—The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-CommitEPSS 2.2%