CVE-2019-9498

Publication date 10 April 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
wpa	19.04 disco	Fixed 2:2.6-21ubuntu3
	18.10 cosmic	Fixed 2:2.6-18ubuntu1.1
	18.04 LTS bionic	Fixed 2:2.6-15ubuntu2.2
	16.04 LTS xenial	Fixed 2.4-0ubuntu6.4
	14.04 LTS trusty	Fixed 2.1-0ubuntu1.7
wpasupplicant	19.04 disco	Not in release
	18.10 cosmic	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

Severity score breakdown

Parameter	Value
Base score	8.1 · High
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-3944-1
wpa_supplicant and hostapd vulnerabilities
10 April 2019