Debian DLA-1922-1 : wpa security update

medium Nessus Plugin ID 128880

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Synopsis

The remote Debian host is missing a security update.

Description

hostapd (and wpa_supplicant when controlling AP mode) did not perform sufficient source address validation for some received Management frames and this could result in ending up sending a frame that caused associated stations to incorrectly believe they were disconnected from the network even if management frame protection (also known as PMF) was negotiated for the association. This could be considered to be a denial of service vulnerability since PMF is supposed to protect from this type of issues.

For Debian 8 'Jessie', this problem has been fixed in version 2.3-1+deb8u9.

We recommend that you upgrade your wpa packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

Plugin Details

Severity: Medium

ID: 128880

File Name: debian_DLA-1922.nasl

Version: 1.5

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 9/17/2019

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.4

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

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:hostapd, p-cpe:/a:debian:debian_linux:wpagui, p-cpe:/a:debian:debian_linux:wpasupplicant, p-cpe:/a:debian:debian_linux:wpasupplicant-udeb, cpe:/o:debian:debian_linux:8.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/16/2019

Vulnerability Publication Date: 9/12/2019

Reference Information

CVE: CVE-2019-16275

Detections

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