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Debian DSA-4898-1 : wpa - security update

high Nessus Plugin ID 148967

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Synopsis

The remote Debian host is missing a security-related update.

Description

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.

Solution

Upgrade the wpa packages.

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

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=976106

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981971

https://security-tracker.debian.org/tracker/CVE-2020-12695

https://security-tracker.debian.org/tracker/CVE-2021-0326

https://security-tracker.debian.org/tracker/CVE-2021-27803

https://security-tracker.debian.org/tracker/source-package/wpa

https://packages.debian.org/source/buster/wpa

https://www.debian.org/security/2021/dsa-4898

Plugin Details

Severity: High

ID: 148967

File Name: debian_DSA-4898.nasl

Version: 1.7

Type: local

Agent: unix

Published: 4/23/2021

Updated: 1/16/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.8

CVSS v2

Risk Factor: High

Base Score: 7.9

Temporal Score: 6.2

Vector: CVSS2#AV:A/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2021-0326

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2021-27803

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:wpa, cpe:/o:debian:debian_linux:10.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/22/2021

Vulnerability Publication Date: 6/8/2020

Reference Information

CVE: CVE-2020-12695, CVE-2021-0326, CVE-2021-27803

DSA: 4898