Information Exposure Affecting wpa_supplicant package, versions <2.9-4.20.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.73% (81st percentile)

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  • Snyk IDSNYK-SLES152-WPASUPPLICANT-2696924
  • published14 Apr 2022
  • disclosed19 Nov 2020

Introduced: 19 Nov 2020

CVE-2019-9495  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 wpa_supplicant to version 2.9-4.20.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wpa_supplicant package and not the wpa_supplicant package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

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.

CVSS Scores

version 3.1