The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side-channel attacks
CVE-2019-9494

5.9MEDIUM

Key Information:

Vendor

Wi-fi Alliance

Status
Hostapd With Sae Support
WPa Supplicant With Sae Support
Vendor
CVE Published:
17 April 2019

What is CVE-2019-9494?

The implementations of SAE in hostapd and wpa_supplicant 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 wpa_supplicant with SAE support prior to and including version 2.7 are affected.

Affected Version(s)

hostapd with SAE support 2.7

wpa_supplicant with SAE support 2.7

References

https://w1.fi/security/2019-1/
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:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.