CVE-2019-9498

Description

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.

How to fix CVE-2019-9498

To remediate CVE-2019-9498, upgrade the affected package to a fixed version below.

• —upgrade to 2.7-r2 or later
• —upgrade to 2:2.7+git20190128+0c1e29f-4 or later

Is CVE-2019-9498 being exploited?

Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 2.7-r2
• from 0, < 2:2.7+git20190128+0c1e29f-4

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2019-9498
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2019-9498