hostapd: The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of ca...
CVE-2019-9495 is fixed in 3 products on 1 platform, first by hostapd 2:2.6-15ubuntu2.2, released April 10, 2019. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| hostapd · Ubuntu 18.04.6 LTS (bionic) | 2:2.6-15ubuntu2.2 | hostapd 2:2.6-15ubuntu2.2 | Apr 10, 2019 |
| wpagui · Ubuntu 18.04.6 LTS (bionic) | 2:2.6-15ubuntu2.2 | wpagui 2:2.6-15ubuntu2.2 | Apr 10, 2019 |
| wpasupplicant · Ubuntu 18.04.6 LTS (bionic) | 2:2.6-15ubuntu2.2 | wpasupplicant 2:2.6-15ubuntu2.2 | Apr 10, 2019 |
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