CVE-2021-30004 : In wpa_supplicant and hostapd 2.9, forging attacks may occur because AlgorithmId

In wpa_supplicant and hostapd 2.9, forging attacks may occur because AlgorithmIdentifier parameters are mishandled in tls/pkcs1.c and tls/x509v3.c.

Published 2021-04-02 05:15:13

Updated 2023-09-30 11:15:10

Source MITRE

View at NVD, CVE.org

Vulnerability category: Input validation

Products affected by CVE-2021-30004

W1.fi » Hostapd » Version: 2.9
cpe:2.3:a:w1.fi:hostapd:2.9:*:*:*:*:*:*:*
Matching versions
W1.fi » Wpa Supplicant » Version: 2.9
cpe:2.3:a:w1.fi:wpa_supplicant:2.9:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.27%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 47 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N	3.9	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: Low Availability: None

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: nvd@nist.gov (Primary)

https://w1.fi/cgit/hostap/commit/?id=a0541334a6394f8237a4393b7372693cd7e96f15

hostap - hostapd/wpa_supplicant
Patch;Vendor Advisory
https://security.gentoo.org/glsa/202309-16

wpa_supplicant, hostapd: Multiple Vulnerabilities (GLSA 202309-16) — Gentoo security

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