CVE-2019-9494: The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side-channel attacks
The implementations of SAE in hostapd and wpasupplicant are vulnerable to side channel attacks as a result of observable timing differences and cache access patterns. An attacker may be able to gain leaked information from a side channel attack that can be used for full password recovery. Both hostapd with SAE support and wpasupplicant with SAE support prior to and including version 2.7 are affected.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2019-9494?
CVE-2019-9494 is a vulnerability in the implementations of SAE in hostapd and wpa_supplicant, which are vulnerable to side channel attacks.
What is the severity of CVE-2019-9494?
The severity of CVE-2019-9494 is medium with a CVSS score of 5.9.
Which software is affected by CVE-2019-9494?
The affected software includes W1.fi Hostapd, W1.fi Wpa Supplicant, Fedoraproject Fedora, openSUSE Backports SLE, openSUSE Leap, Synology Radius Server, Synology Router Manager, and Freebsd Freebsd.
How can an attacker exploit CVE-2019-9494?
An attacker can exploit CVE-2019-9494 by gaining leaked information from a side channel attack that can be used for full password recovery.
Are there any references for CVE-2019-9494?
Yes, you can find references for CVE-2019-9494 at the following links: http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html, http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html, and https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/.