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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Wi-Fi Alliance hostapd with EAP-pwd support
2.7 to ≤ 2.7affected
Wi-Fi Alliance wpa_supplicant with EAP-pwd support
2.7 to ≤ 2.7affected
References
- https://w1.fi/security/2019-2/ ↗
- https://www.synology.com/security/advisory/Synology_SA_19_16 ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/ ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/ ↗
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc ↗
- https://seclists.org/bugtraq/2019/May/40 ↗
- http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html ↗
- https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html ↗
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html ↗