CVE-2022-37660
Publication date 11 February 2025
Last updated 25 August 2025
Ubuntu priority
Description
In hostapd 2.10 and earlier, the PKEX code remains active even after a successful PKEX association. An attacker that successfully bootstrapped public keys with another entity using PKEX in the past, will be able to subvert a future bootstrapping by passively observing public keys, re-using the encrypting element Qi and subtracting it from the captured message M (X = M - Qi). This will result in the public ephemeral key X; the only element required to subvert the PKEX association.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| wpa | ||
| 24.04 LTS noble |
Fixed 2:2.10-21ubuntu0.2
|
|
| 22.04 LTS jammy |
Fixed 2:2.10-6ubuntu2.2
|
|
| 20.04 LTS focal |
Fixed 2:2.9-1ubuntu4.6
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty |
Not affected
|
Notes
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
6.5 · Medium
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-7317-1
- wpa_supplicant and hostapd vulnerabilities
- 3 March 2025