Public Date:
1500301: CVE-2017-13084 wpa_supplicant: reinstallation of the STK key in the PeerKey handshake

The MITRE CVE dictionary describes this issue as:

Wi-Fi Protected Access (WPA and WPA2) allows reinstallation of the Station-To-Station-Link (STSL) Transient Key (STK) during the PeerKey handshake, allowing an attacker within radio range to replay, decrypt, or spoof frames.

Find out more about CVE-2017-13084 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue did not affect the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 5, 6, and 7, as wpa_supplicant's implementation of the PeerKey handshake mechanism is incomplete and does not allow the installation of a key into the driver.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 8.1
CVSS3 Base Metrics CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Adjacent Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact None

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 wpa_supplicant Not affected
Red Hat Enterprise Linux 6 wpa_supplicant Not affected
Red Hat Enterprise Linux 5 wpa_supplicant Not affected


Red Hat would like to thank CERT for reporting this issue. Upstream acknowledges Mathy Vanhoef (University of Leuven) as the original reporter.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation