VDB

CVE-2019-9495

CVE-2019-9495 PUBLISHED

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.

EPSS 6.89% · 91.6th percentile

Risk Scores

EPSS Score
6.89%
91.6th percentile

Affected Products

VendorProductVersions
Ubuntu:18.04:LTSwpa0, 2:2.4-1.1ubuntu1, 2:2.6-15ubuntu1
Ubuntu:16.04:LTSwpa2.4-0ubuntu6.3, 0, 2.4-0ubuntu3
Ubuntu:14.04:LTSwpa0, 1.0-3ubuntu4, 2.1-0ubuntu1

Timeline

  • Apr 10, 2019 CVE Published
  • Apr 14, 2021 EPSS Score
  • Aug 24, 2021 EPSS Score
  • Dec 27, 2021 EPSS Score
  • Jan 6, 2022 EPSS Score
  • Feb 28, 2022 EPSS Score
  • May 1, 2022 EPSS Score
  • Sep 4, 2022 EPSS Score
  • Nov 6, 2022 EPSS Score
  • Mar 7, 2023 EPSS Score
  • May 13, 2023 EPSS Score
  • Sep 15, 2023 EPSS Score
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