CVE-2019-9495 The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns
LowCVSS 3.7
EPSS 3.5%
- Published
- Updated
- Exploit status
- No public exploit known
Description
The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. Versions of hostapd/wpa_supplicant 2.7 and newer, are not vulnerable to the timing attack described in CVE-2019-9494. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/wpa(Debian:12) | < 2:2.7+git20190128+0c1e29f-4 | 2:2.7+git20190128+0c1e29f-4 |
| debian/wpa(Debian:13) | < 2:2.7+git20190128+0c1e29f-4 | 2:2.7+git20190128+0c1e29f-4 |
| debian/wpa(Debian:14) | < 2:2.7+git20190128+0c1e29f-4 | 2:2.7+git20190128+0c1e29f-4 |
| w1.fi hostapd | <= 2.7 | No fix listed |
| w1.fi wpa supplicant | <= 2.7 | No fix listed |
| fedoraproject fedora | = 28 | No fix listed |
| fedoraproject fedora | = 29 | No fix listed |
| fedoraproject fedora | = 30 | No fix listed |
| openSUSE backports sle | = 15.0 | No fix listed |
| openSUSE backports sle | = 15.0-sp1 | No fix listed |
| openSUSE leap | = 15.1 | No fix listed |
| Synology radius server | = 3.0 | No fix listed |
| Synology router manager | < 1.2.3-8017 | 1.2.3-8017 |
| debian linux | = 8.0 | No fix listed |
| freebsd | = 11.2 | No fix listed |
| freebsd | = 11.2-p2 | No fix listed |
| freebsd | = 11.2-p3 | No fix listed |
| freebsd | = 11.2-p4 | No fix listed |
| freebsd | = 11.2-p5 | No fix listed |
| freebsd | = 11.2-p6 | No fix listed |
| freebsd | = 11.2-p7 | No fix listed |
| freebsd | = 11.2-p8 | No fix listed |
| freebsd | = 11.2-p9 | No fix listed |
| freebsd | = 11.2-rc3 | No fix listed |
| freebsd | = 12.0 | No fix listed |
Show 21 more
| Product | Affected versions | Fixed in |
|---|---|---|
| freebsd | = 12.0-p1 | No fix listed |
| freebsd | = 12.0-p2 | No fix listed |
| freebsd | = 12.0-p3 | No fix listed |
| alpine/wpa_supplicant(Alpine:v3.10) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.11) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.12) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.13) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.14) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.15) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.16) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.17) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.18) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.19) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.20) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.21) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.22) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.23) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.24) | < 2.7-r2 | 2.7-r2 |
| alpine/wpa_supplicant(Alpine:v3.9) | < 2.7-r2 | 2.7-r2 |
| Wi-Fi Alliance hostapd with EAP-pwd support | >= 2.7, <= 2.7 | No fix listed |
| Wi-Fi Alliance wpa_supplicant with EAP-pwd support | >= 2.7, <= 2.7 | No fix listed |
References
- Debian Security Tracker CVE-2019-9495 vendor-advisory
- openSUSE-SU-2020:0222 mailing-list third-party-advisory vendor-advisory
- packetstormsecurity.com third-party-advisory vdb-entry
- [debian-lts-announce] 20190731 [SECURITY] [DLA 1867-1] wpa security update mailing-list third-party-advisory
- FEDORA-2019-d03bae77f5 vendor-advisory
- FEDORA-2019-eba1109acd vendor-advisory
- FEDORA-2019-f409af9fbe vendor-advisory
- 20190515 FreeBSD Security Advisory FreeBSD-SA-19:03.wpa mailing-list third-party-advisory
- FreeBSD-SA-19:03 third-party-advisory vendor-advisory
- w1.fi patch vendor-advisory
- www.synology.com third-party-advisory
- security.alpinelinux.org vendor-advisory
- bugs.debian.org issue-tracking