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TI-2019-06931 Aliases CVE-2019-9495GHSA-p694-q9qw-q238

Observable discrepancy in Wi-Fi Alliance hostapd with EAP-pwd support

Priority LOW 24CWE-524Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-203.

Summary

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.

Why it matters now

EPSS 0.03477 89th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Wi-Fi Alliancehostapd with EAP-pwd support2.7 – 2.7—No fix listedCNA
Wi-Fi Alliancewpa_supplicant with EAP-pwd support2.7 – 2.7—No fix listedCNA
  • hostapd with EAP-pwd support VendorWi-Fi Alliance Affected 2.7 – 2.7 Fixed in — No fix listed CNA
  • wpa_supplicant with EAP-pwd support VendorWi-Fi Alliance Affected 2.7 – 2.7 Fixed in — No fix listed CNA

CPE configurations NVD · 25

CPEVersionsRoleVendor
cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*up to 2.7VulnerableWi-Fi Alliance
cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*up to 2.7VulnerableWi-Fi Alliance
cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*28VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*29VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*30VulnerableFedoraproject
cpe:2.3:a:opensuse:backports_sle:15.0:-:*:*:*:*:*:*15.0VulnerableopenSUSE
cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*15.0 sp1VulnerableopenSUSE
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*15.1VulnerableopenSUSE
cpe:2.3:a:synology:radius_server:3.0:*:*:*:*:*:*:*3.0VulnerableSynology
cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:*before 1.2.3-8017VulnerableSynology
  • cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:* Versions up to 2.7 Vulnerable ·Wi-Fi Alliance
  • cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:* Versions up to 2.7 Vulnerable ·Wi-Fi Alliance
  • cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* Versions 28 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* Versions 29 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
  • cpe:2.3:a:opensuse:backports_sle:15.0:-:*:*:*:*:*:* Versions 15.0 Vulnerable ·openSUSE
  • cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* Versions 15.0 sp1 Vulnerable ·openSUSE
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
  • cpe:2.3:a:synology:radius_server:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Synology
  • cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:* Versions before 1.2.3-8017 Vulnerable ·Synology
Show 15 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*11.2VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:*11.2 p2VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:*11.2 p3VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*11.2 p4VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:*11.2 p5VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:*11.2 p6VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:*11.2 p7VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p8:*:*:*:*:*:*11.2 p8VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:*11.2 p9VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:11.2:rc3:*:*:*:*:*:*11.2 rc3VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*12.0VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*12.0 p1VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:p2:*:*:*:*:*:*12.0 p2VulnerableFreeBSD
cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*12.0 p3VulnerableFreeBSD
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:* Versions 11.2 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:* Versions 11.2 p2 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:* Versions 11.2 p3 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:* Versions 11.2 p4 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:* Versions 11.2 p5 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:* Versions 11.2 p6 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:* Versions 11.2 p7 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p8:*:*:*:*:*:* Versions 11.2 p8 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:* Versions 11.2 p9 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:11.2:rc3:*:*:*:*:*:* Versions 11.2 rc3 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:* Versions 12.0 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:* Versions 12.0 p1 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:p2:*:*:*:*:*:* Versions 12.0 p2 Vulnerable ·FreeBSD
  • cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:* Versions 12.0 p3 Vulnerable ·FreeBSD

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Wi-Fi Alliance hostapd with EAP-pwd support, wpa_supplicant with EAP-pwd support — FEDORA-2019-d03bae77f5

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2019-06933 Improper authentication in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 43
    • TI-2019-06935 Origin validation error in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 40
    • TI-2019-06934 The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-CommitPriority MEDIUM 40
    Show all 4 records → Advisory →
  • Advisory ·

    Wi-Fi Alliance hostapd with EAP-pwd support, wpa_supplicant with EAP-pwd support — FEDORA-2019-eba1109acd

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2019-06933 Improper authentication in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 43
    • TI-2019-06935 Origin validation error in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 40
    • TI-2019-06934 The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-CommitPriority MEDIUM 40
    Show all 4 records → Advisory →
Show 2 more groups
  • Advisory ·

    Wi-Fi Alliance hostapd with EAP-pwd support, wpa_supplicant with EAP-pwd support — FEDORA-2019-f409af9fbe

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2019-06933 Improper authentication in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 43
    • TI-2019-06935 Origin validation error in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 40
    • TI-2019-06934 The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-CommitPriority MEDIUM 40
    Show all 4 records → Advisory →
  • Advisory ·

    Wi-Fi Alliance hostapd with EAP-pwd support, wpa_supplicant with EAP-pwd support — FreeBSD-SA-19:03

    4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2019-06933 Improper authentication in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 43
    • TI-2019-06935 Origin validation error in Wi-Fi Alliance hostapd with EAP-pwd supportPriority MEDIUM 40
    • TI-2019-06934 The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-CommitPriority MEDIUM 40
    Show all 4 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 5 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Virtualization 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-9495
  2. 2026-10-03 Alias added: GHSA-p694-q9qw-q238

References

Patch 1

Advisory 9

  • TI-2020-10094 The Open Connectivity Foundation UPnP specification before 2020-04-17 does not forbid the… CVSS 3.1HIGH 7.5
  • TI-2022-07426 The implementations of SAE in hostapd before 2.10 and wpa_supplicant before 2.10 are… CVSS 3.1CRITICAL 9.8
  • TI-2022-07427 The implementations of EAP-pwd in hostapd before 2.10 and wpa_supplicant before 2.10 are… CVSS 3.1CRITICAL 9.8
  • TI-2019-06933 Improper authentication in Wi-Fi Alliance hostapd with EAP-pwd support CVSS 3.0HIGH 8.1
  • TI-2017-09721 Wi-Fi Protected Access (WPA and WPA2) that supports IEEE 802.11r allows reinstallation of… CVSS 3.0HIGH 8.1
  • TI-2019-06935 Origin validation error in Wi-Fi Alliance hostapd with EAP-pwd support CVSS 3.1HIGH 8.1
See all 40 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences