SARA / Free Tools / CVE / CVE-2019-9496

CVE-2019-9496 — An invalid authentication sequence could result in the hostapd process terminati

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 proc

CVSS
— —
EPSS
2.36% (top 15.30%)
CWE
CWE-642
Published
2019-04-17T13:31:08.000Z
Last modified
2024-08-04T21:54:44.155Z
CVSS vector
—

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
Wi-Fi Alliancehostapd with SAE support2.7
Wi-Fi Alliancewpa_supplicant with SAE support2.7

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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