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FreeBSD: VID-2DA3CB25-6571-11E9-8E67-206A8A720317 (CVE-2019-9498): FreeBSD -- EAP-pwd missing commit validation

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FreeBSD: VID-2DA3CB25-6571-11E9-8E67-206A8A720317 (CVE-2019-9498): FreeBSD -- EAP-pwd missing commit validation

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
04/10/2019
Created
04/25/2019
Added
04/23/2019
Modified
05/07/2019

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.

Solution(s)

  • freebsd-upgrade-base-11_2-release-p9
  • freebsd-upgrade-base-12_0-release-p3
  • freebsd-upgrade-package-hostapd
  • freebsd-upgrade-package-wpa_supplicant

References

  • CVE-2019-9498
  • USN-3944-1

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