# CVE-2022-23304: wpa: The implementations of EAP-pwd in hostapd before 2.10 and wpa_supplicant before 2.10 are vulnerable to side-channel a...

CVE-2022-23304 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2022-23304, released January 17, 2022. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2022-23304
- Priority: Urgent
- CVSS: 9.8 (critical)
- EPSS: 0.0191
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 16, 2022

## Description

The implementations of EAP-pwd in hostapd before 2.10 and wpa_supplicant before 2.10 are vulnerable to side-channel attacks as a result of cache access patterns. NOTE: this issue exists because of an incomplete fix for CVE-2019-9495.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | hostapd Ubuntu 20.04 LTS (focal) | 2:2.9-1ubuntu4.6 | [hostapd 2:2.9-1ubuntu4.6](https://patchblox.com/security/data/fix/linux/ubuntu-focal-hostapd-2-2.9-1ubuntu4.6.md) | Feb 11, 2025 |
| Linux | wpa Debian 12.15 (bookworm) | 2:2.10-1 | [DEBIAN-CVE-2022-23304](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23304.md) | Jan 17, 2022 |
| Linux | wpa Debian 13.5 (trixie) | 2:2.10-1 | [DEBIAN-CVE-2022-23304](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23304.md) | Jan 17, 2022 |
| Linux | wpa Debian 14 | 2:2.10-1 | [DEBIAN-CVE-2022-23304](https://patchblox.com/security/data/fix/linux/debian-cve-2022-23304.md) | Jan 17, 2022 |
| Linux | wpagui Ubuntu 20.04 LTS (focal) | 2:2.9-1ubuntu4.6 | [wpagui 2:2.9-1ubuntu4.6](https://patchblox.com/security/data/fix/linux/ubuntu-focal-wpagui-2-2.9-1ubuntu4.6.md) | Feb 11, 2025 |
| Linux | wpasupplicant Ubuntu 20.04 LTS (focal) | 2:2.9-1ubuntu4.6 | [wpasupplicant 2:2.9-1ubuntu4.6](https://patchblox.com/security/data/fix/linux/ubuntu-focal-wpasupplicant-2-2.9-1ubuntu4.6.md) | Feb 11, 2025 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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