Vulnerability 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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| W1.Fi | Hostapd | <= 2.7 |
| W1.Fi | Wpa Supplicant | <= 2.7 |
| Fedoraproject | Fedora | 28 |
| Opensuse | Backports Sle | 15.0 |
| Opensuse | Leap | 15.1 |
| Synology | Radius Server | 3.0 |
| Synology | Router Manager | < 1.2.3-8017 |
| Debian | Debian Linux | 8.0 |
| Freebsd | Freebsd | 11.2 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.htmlMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SAThird Party AdvisoryVDB Entry
- https://lists.debian.org/debian-lts-announce/2019/07/msg00030.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://seclists.org/bugtraq/2019/May/40Mailing ListThird Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.ascThird Party Advisory
- https://w1.fi/security/2019-2/PatchVendor Advisory
- https://www.synology.com/security/advisory/Synology_SA_19_16Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.htmlMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SAThird Party AdvisoryVDB Entry
- https://lists.debian.org/debian-lts-announce/2019/07/msg00030.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2019-9495?
CVE-2019-9495 is a vulnerability with a CVSS score of 3.7 (LOW). 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 suppor...
How severe is CVE-2019-9495?
CVE-2019-9495 has been rated LOW with a CVSS base score of 3.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-9495?
Check the references section above for vendor advisories and patch information. Affected products include: W1.Fi Hostapd, W1.Fi Wpa Supplicant, Fedoraproject Fedora, Opensuse Backports Sle, Opensuse Leap.