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CVE-2019-9496

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

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 7.5 · High · EPSS 4.7% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • hostapd with sae support

    Versions
    • ≥ 2.7, ≤ 2.7: Affected (custom)

    No fix published

  • wpa_supplicant with sae support

    Versions
    • ≥ 2.7, ≤ 2.7: Affected (custom)

    No fix published

  • wpa Debian:12

    Affected ranges
    • ECOSYSTEM: < 2:2.7+git20190128+0c1e29f-4

    Update to 2:2.7+git20190128+0c1e29f-4

  • wpa Debian:13

    Affected ranges
    • ECOSYSTEM: < 2:2.7+git20190128+0c1e29f-4

    Update to 2:2.7+git20190128+0c1e29f-4

  • wpa Debian:14

    Affected ranges
    • ECOSYSTEM: < 2:2.7+git20190128+0c1e29f-4

    Update to 2:2.7+git20190128+0c1e29f-4

Original sources

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