The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns
CVE-2019-9495

3.7LOW

Key Information:

Vendor

Wi-fi Alliance

Status
Hostapd With Eap-pwd Support
WPa Supplicant With Eap-pwd Support
Vendor
CVE Published:
17 April 2019

What is CVE-2019-9495?

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 Version(s)

hostapd with EAP-pwd support 2.7

wpa_supplicant with EAP-pwd support 2.7

References

https://w1.fi/security/2019-2/
x_refsource_CONFIRM
https://www.synology.com/security/advisory/Synology_SA_19_16
x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisoryx_refsource_FEDORA

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.