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Amazon Linux 2 : wpa_supplicant (ALAS-2021-1624)

high Nessus Plugin ID 148194

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of wpa_supplicant installed on the remote host is prior to 2.6-12. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2021-1624 advisory.

 A flaw was found in the wpa_supplicant, in the way it processes P2P (Wi-Fi Direct) provision discovery requests. This flaw allows an attacker who is within radio range of the device running P2P discovery to cause termination of the wpa_supplicant process or potentially cause code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-27803)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update wpa_supplicant' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2021-1624.html

https://access.redhat.com/security/cve/CVE-2021-27803

Plugin Details

Severity: High

ID: 148194

File Name: al2_ALAS-2021-1624.nasl

Version: 1.3

Type: local

Agent: unix

Published: 3/27/2021

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2021-27803

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:wpa_supplicant-debuginfo, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:wpa_supplicant

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 3/25/2021

Vulnerability Publication Date: 2/26/2021

Reference Information

CVE: CVE-2021-27803

ALAS: 2021-1624