[SECURITY] [DSA 4898-1] wpa security update

Debian Security Advisory DSA-4898-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
April 22, 2021 https://www.debian.org/security/faq

Package : wpa
CVE ID : CVE-2020-12695 CVE-2021-0326 CVE-2021-27803
Debian Bug : 976106 981971

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

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]