#VU59106 Input validation error in wpa_supplicant - CVE-2021-30004

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Main Vulnerability Database Vulnerabilities #VU59106

#VU59106 Input validation error in wpa_supplicant - CVE-2021-30004

Published: December 29, 2021 / Updated: January 17, 2022


Vulnerability identifier: #VU59106
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-30004
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
wpa_supplicant
Software vendor:
Jouni Malinen

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to insufficient validation of user-supplied input in tls/pkcs1.c and tls/x509v3.c files in wpa_supplicant and hostapd when handling AlgorithmIdentifier parameters. A remote attacker can pass specially crafted input to the application and perform MitM attack.


Remediation

Install updates from vendor's website.

External links