CVE catalog
CVE-2019-9495
wpa: CVE-2019-9495
- Severity
- Medium · CVSS 6.4
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 3.48% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | wpa | sid | 2:2.11-4 | fixed |
| Debian | wpa | forky | 2:2.11-4 | fixed |
| Debian | wpa | trixie | 2:2.10-24 | fixed |
| Debian | wpa | bookworm | 2:2.10-12+deb12u3 | fixed |
| Debian | wpa | bookworm-security | 2:2.10-12+deb12u2 | fixed |
| Alpine | wpa_supplicant | 3.10 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.11 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.12 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.13 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.14 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.15 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.16 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.17 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.18 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.19 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.20 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.21 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.22 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.23 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.24 | 2.7-r2 | fixed |
| Alpine | wpa_supplicant | 3.9 | 2.7-r2 | fixed |
| Ubuntu | wpa | 14.04 | 1.0-3ubuntu2 | vulnerable |
| Ubuntu | wpa | 14.04 | 1.0-3ubuntu3 | vulnerable |
| Ubuntu | wpa | 14.04 | 1.0-3ubuntu4 | vulnerable |
| Ubuntu | wpa | 14.04 | 2.1-0ubuntu1 | vulnerable |
| Ubuntu | wpa | 14.04 | 2.1-0ubuntu1.1 | vulnerable |
| Ubuntu | wpa | 14.04 | 2.1-0ubuntu1.2 | vulnerable |
| Ubuntu | wpa | 14.04 | 2.1-0ubuntu1.3 | vulnerable |
| Ubuntu | wpa | 14.04 | 2.1-0ubuntu1.4 | vulnerable |
| Ubuntu | wpa | 14.04 | 2.1-0ubuntu1.5 | vulnerable |
| Ubuntu | wpa | 14.04 | 2.1-0ubuntu1.6 | vulnerable |
| Ubuntu | wpa | 14.04 | 2.1-0ubuntu1.7 | fixed |
| Ubuntu | wpa | 16.04 | 2.4-0ubuntu3 | vulnerable |
| Ubuntu | wpa | 16.04 | 2.4-0ubuntu4 | vulnerable |
| Ubuntu | wpa | 16.04 | 2.4-0ubuntu5 | vulnerable |
| Ubuntu | wpa | 16.04 | 2.4-0ubuntu6 | vulnerable |
| Ubuntu | wpa | 16.04 | 2.4-0ubuntu6.2 | vulnerable |
| Ubuntu | wpa | 16.04 | 2.4-0ubuntu6.3 | vulnerable |
| Ubuntu | wpa | 16.04 | 2.4-0ubuntu6.4 | fixed |
| Ubuntu | wpa | 18.04 | 2.4-0ubuntu10 | vulnerable |
| Ubuntu | wpa | 18.04 | 2:2.4-1.1ubuntu1 | vulnerable |
| Ubuntu | wpa | 18.04 | 2:2.6-15ubuntu1 | vulnerable |
| Ubuntu | wpa | 18.04 | 2:2.6-15ubuntu2 | vulnerable |
| Ubuntu | wpa | 18.04 | 2:2.6-15ubuntu2.1 | vulnerable |
| Ubuntu | wpa | 18.04 | 2:2.6-15ubuntu2.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | wpa | source | sid | 2:2.7+git20190128+0c1e29f-4 | not yet assigned | Not reported | [926801] |
| Debian | wpa | source | forky | 2:2.7+git20190128+0c1e29f-4 | not yet assigned | Not reported | [926801] |
| Debian | wpa | source | trixie | 2:2.7+git20190128+0c1e29f-4 | not yet assigned | Not reported | [926801] |
| Debian | wpa | source | bookworm | 2:2.7+git20190128+0c1e29f-4 | not yet assigned | Not reported | [926801] |
| Alpine | wpa_supplicant | apk | 3.10 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.11 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.12 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.13 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.14 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.15 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.16 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.17 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.18 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.19 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.20 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.21 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.22 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.23 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.24 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Alpine | wpa_supplicant | apk | 3.9 | 2.7-r2 | Not reported | ALPINE-CVE-2019-9495 | Not reported |
| Ubuntu | wpa | deb | 14.04 | 2.1-0ubuntu1.7 | Not reported | UBUNTU-CVE-2019-9495 | Not reported |
| Ubuntu | wpa | deb | 16.04 | 2.4-0ubuntu6.4 | Not reported | UBUNTU-CVE-2019-9495 | Not reported |
| Ubuntu | wpa | deb | 18.04 | 2:2.6-15ubuntu2.2 | Not reported | UBUNTU-CVE-2019-9495 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [eapoltest]Fixed
Source package: [wpa]
Details (4)
2:2.10-12+deb12u3· amd64 · bookwormFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u3· arm64 · bookwormFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u2· amd64 · bookworm-securityFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u2· arm64 · bookworm-securityFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
- [hostapd]Fixed
Source package: [wpa]
Details (4)
2:2.10-12+deb12u3· amd64 · bookwormFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u3· arm64 · bookwormFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u2· amd64 · bookworm-securityFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u2· arm64 · bookworm-securityFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
- [libwpa-client-dev]Fixed
Source package: [wpa]
Details (4)
2:2.10-12+deb12u3· amd64 · bookwormFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u3· arm64 · bookwormFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u2· amd64 · bookworm-securityFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u2· arm64 · bookworm-securityFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
- [wpagui]Fixed
Source package: [wpa]
Details (4)
2:2.10-12+deb12u3· amd64 · bookwormFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u3· arm64 · bookwormFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u2· amd64 · bookworm-securityFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u2· arm64 · bookworm-securityFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
- [wpasupplicant]Fixed
Source package: [wpa]
Details (4)
2:2.10-12+deb12u3· amd64 · bookwormFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u3· arm64 · bookwormFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u2· amd64 · bookworm-securityFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
2:2.10-12+deb12u2· arm64 · bookworm-securityFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · bookworm; dsa · wpa · debian · 12
[Debian 13 (Trixie)]
- [eapoltest]Fixed
Source package: [wpa]
Details (2)
2:2.10-24· amd64 · trixieFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · 13
2:2.10-24· arm64 · trixieFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · 13
- [hostapd]Fixed
Source package: [wpa]
Details (2)
2:2.10-24· amd64 · trixieFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · 13
2:2.10-24· arm64 · trixieFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · 13
- [libwpa-client-dev]Fixed
Source package: [wpa]
Details (2)
2:2.10-24· amd64 · trixieFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · 13
2:2.10-24· arm64 · trixieFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · 13
- [wpagui]Fixed
Source package: [wpa]
Details (2)
2:2.10-24· amd64 · trixieFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · 13
2:2.10-24· arm64 · trixieFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · 13
- [wpasupplicant]Fixed
Source package: [wpa]
Details (2)
2:2.10-24· amd64 · trixieFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · 13
2:2.10-24· arm64 · trixieFixed · Fixed:
2:2.7+git20190128+0c1e29f-4dsa · wpa · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2020_3380-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2019-9495]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-9495]
- [https://osv.dev/vulnerability/DSA-4430-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-9495]
- [https://security-tracker.debian.org/tracker/CVE-2019-9495]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]