# CVE-2019-16275: hostapd: hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situatio...

CVE-2019-16275 is fixed in 3 products on 1 platform, first by hostapd 2:2.6-15ubuntu2.5, released September 12, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-16275
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0121
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 12, 2019

## Description

hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service that should have been prevented by PMF (aka management frame protection). The attacker must send a crafted 802.11 frame from a location that is within the 802.11 communications range. An attacker in radio range of the access point could inject a specially constructed unauthenticated IEEE 802.11 frame to the access point to cause associated stations to be disconnected and require a reconnection to the network.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | hostapd Ubuntu 18.04.6 LTS (bionic) | 2:2.6-15ubuntu2.5 | [hostapd 2:2.6-15ubuntu2.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-hostapd-2-2.6-15ubuntu2.5.md) | Sep 12, 2019 |
| Linux | wpagui Ubuntu 18.04.6 LTS (bionic) | 2:2.6-15ubuntu2.5 | [wpagui 2:2.6-15ubuntu2.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-wpagui-2-2.6-15ubuntu2.5.md) | Sep 12, 2019 |
| Linux | wpasupplicant Ubuntu 18.04.6 LTS (bionic) | 2:2.6-15ubuntu2.5 | [wpasupplicant 2:2.6-15ubuntu2.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-wpasupplicant-2-2.6-15ubuntu2.5.md) | Sep 12, 2019 |

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