CVE-2019-9494
Published: 10 April 2019
The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side channel attacks as a result of observable timing differences and cache access patterns. An attacker may be able to gain leaked information from a side channel attack that can be used for full password recovery. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
Notes
| Author | Note |
|---|---|
| mdeslaur | SAE support not built in Ubuntu |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
wpa Launchpad, Ubuntu, Debian |
upstream |
Released
(2.8)
|
| trusty |
Not vulnerable
(code not built)
|
|
| xenial |
Not vulnerable
(code not built)
|
|
| bionic |
Not vulnerable
(code not built)
|
|
| cosmic |
Not vulnerable
(code not built)
|
|
|
wpasupplicant Launchpad, Ubuntu, Debian |
upstream |
Needs triage
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.9 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |