CVE-2019-9496

Advisory lineage Upstream: 0 Downstream: 4
Modified
Published: 17 Apr 2019, 13:31
Last modified:04 Aug 2024, 21:54

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.5 HIGH
v3.0 (nvd)
EPSS Score
4.87% LOW
5% probability +2.75%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

17 Apr 2019, 13:31
Published
Vulnerability first disclosed
04 Aug 2024, 21:54
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.0•HIGH•Score: 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 4.87%• Percentile: 90%

Techniques & Countermeasures

  • CWE-287•Improper Authentication

    When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

  • CWE-642•External Control of Critical State Data

    The product stores security-critical state information about its users, or the product itself, in a location that is accessible to unauthorized actors.

Affected Systems

  • fedoraproject•fedora

    28 | 29 | 30

  • w1.fi•hostapd

    ≤ 2.7

  • w1.fi•wpa_supplicant

    ≤ 2.7

  • wi-fi alliance•hostapd with sae support

    2.7

  • wi-fi alliance•wpa_supplicant with sae support

    2.7

References (9)