An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps
CVE-2019-9496

7.5HIGH

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-2019-9496?

An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. 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/2019-3/
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:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.