[USN-4757-1] wpa_supplicant and hostapd vulnerability
marc.deslauriers at canonical.com
Wed Mar 3 12:50:14 UTC 2021
Ubuntu Security Notice USN-4757-1
March 03, 2021
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
wpa_supplicant could be made to crash or run programs if it received
specially crafted network traffic.
- wpa: client support for WPA and WPA2
It was discovered that wpa_supplicant did not properly handle P2P
(Wi-Fi Direct) provision discovery requests in some situations. A
physically proximate attacker could use this to cause a denial of service
or possibly execute arbitrary code.
The problem can be corrected by updating your system to the following
Ubuntu 20.04 LTS:
Ubuntu 18.04 LTS:
Ubuntu 16.04 LTS:
After a standard system update you need to reboot your computer to make
all the necessary changes.
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