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External Control of Critical State Data

CVE-2019-9496

High
7.5/10

Summary

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.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-642 - External Control of Critical State Data

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

References

Advisory Timeline

  • Published