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 6.20% · 90.8th percentile

Risk Scores

EPSS Score
6.20%
90.8th percentile

Affected Products

VendorProductVersions
Ubuntu:18.04:LTSwpa0, 2:2.6-15ubuntu2.1, 2:2.6-15ubuntu2
Ubuntu:16.04:LTSwpa2.4-0ubuntu3, 0, 2.4-0ubuntu4
Ubuntu:14.04:LTSwpa2.1-0ubuntu1.1, 2.1-0ubuntu1, 1.0-3ubuntu4

Timeline

References

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