Debian Security Advisory

DSA-4898-1 wpa -- security update

Date Reported:
22 Apr 2021
Affected Packages:
wpa
Vulnerable:
Yes
Security database references:
In the Debian bugtracking system: Bug 976106, Bug 981971.
In Mitre's CVE dictionary: CVE-2020-12695, CVE-2021-0326, CVE-2021-27803.
More information:

Several vulnerabilities have been discovered in wpa_supplicant and hostapd.

  • CVE-2020-12695

    It was discovered that hostapd does not properly handle UPnP subscribe messages under certain conditions, allowing an attacker to cause a denial of service.

  • CVE-2021-0326

    It was discovered that wpa_supplicant does not properly process P2P (Wi-Fi Direct) group information from active group owners. An attacker within radio range of the device running P2P could take advantage of this flaw to cause a denial of service or potentially execute arbitrary code.

  • CVE-2021-27803

    It was discovered that wpa_supplicant does not properly process P2P (Wi-Fi Direct) provision discovery requests. An attacker within radio range of the device running P2P could take advantage of this flaw to cause a denial of service or potentially execute arbitrary code.

For the stable distribution (buster), these problems have been fixed in version 2:2.7+git20190128+0c1e29f-6+deb10u3.

We recommend that you upgrade your wpa packages.

For the detailed security status of wpa please refer to its security tracker page at: https://security-tracker.debian.org/tracker/wpa