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CVE-2019-9495

Published: 10 April 2019

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.

Priority

Medium

CVSS 3 base score: 3.7

Status

Package Release Status
wpa
Launchpad, Ubuntu, Debian
bionic
Released (2:2.6-15ubuntu2.2)
cosmic
Released (2:2.6-18ubuntu1.1)
disco
Released (2:2.6-21ubuntu3)
precise Does not exist

trusty
Released (2.1-0ubuntu1.7)
upstream
Released (2.8)
xenial
Released (2.4-0ubuntu6.4)
wpasupplicant
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Not vulnerable
(code not present)
trusty Does not exist

upstream Needs triage

xenial Does not exist