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Slackware Linux 14.0 / 14.1 / 14.2 / current wpa_supplicant Multiple Vulnerabilities (SSA:2022-019-01)

critical Nessus Plugin ID 156857

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Synopsis

The remote Slackware Linux host is missing a security update to wpa_supplicant.

Description

The version of wpa_supplicant installed on the remote host is prior to 2.10 / 2.9. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2022-019-01 advisory.

 - The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. Versions of hostapd/wpa_supplicant 2.7 and newer, are not vulnerable to the timing attack described in CVE-2019-9494.
 Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected. (CVE-2019-9495)

 - The implementations of SAE in hostapd before 2.10 and wpa_supplicant before 2.10 are vulnerable to side channel attacks as a result of cache access patterns. NOTE: this issue exists because of an incomplete fix for CVE-2019-9494. (CVE-2022-23303)

 - The implementations of EAP-pwd in hostapd before 2.10 and wpa_supplicant before 2.10 are vulnerable to side-channel attacks as a result of cache access patterns. NOTE: this issue exists because of an incomplete fix for CVE-2019-9495. (CVE-2022-23304)

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

Solution

Upgrade the affected wpa_supplicant package.

Plugin Details

Severity: Critical

ID: 156857

File Name: Slackware_SSA_2022-019-01.nasl

Version: 1.3

Type: local

Published: 1/19/2022

Updated: 1/25/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2022-23304

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/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:slackware:slackware_linux:wpa_supplicant, cpe:/o:slackware:slackware_linux, cpe:/o:slackware:slackware_linux:14.0, cpe:/o:slackware:slackware_linux:14.1, cpe:/o:slackware:slackware_linux:14.2

Required KB Items: Host/local_checks_enabled, Host/Slackware/release, Host/Slackware/packages

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 4/10/2019

Reference Information

CVE: CVE-2019-9495, CVE-2022-23303, CVE-2022-23304