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FreeBSD: VID-60129EFE-656D-11E9-8E67-206A8A720317 (CVE-2019-9495): FreeBSD -- EAP-pwd side-channel attack

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FreeBSD: VID-60129EFE-656D-11E9-8E67-206A8A720317 (CVE-2019-9495): FreeBSD -- EAP-pwd side-channel attack

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
04/10/2019
Created
04/25/2019
Added
04/23/2019
Modified
05/07/2019

Description

The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. Versions of hostapd/wpa_supplicant 2.7 and newer, are not vulnerable to the timing attack described in CVE-2019-9494. 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

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