Medium severity · published Apr 2, 2021
CVE-2021-30004
In wpa_supplicant and hostapd 2.9, forging attacks may occur because AlgorithmIdentifier parameters are mishandled in tls/pkcs1.c and tls/x509v3.c
5.3
CVSS
1.6%
EPSS
No
On KEV
Description
In wpa_supplicant and hostapd 2.9, forging attacks may occur because AlgorithmIdentifier parameters are mishandled in tls/pkcs1.c and tls/x509v3.c.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HO
Hostapd · W1.fi
2.9 · source: NVD
WS
Wpa Supplicant · W1.fi
2.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-30004
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-30004
security.gentoo.org
https://security.gentoo.org/glsa/202309-16
Patch
https://w1.fi/cgit/hostap/commit/?id=a0541334a6394f8237a4393b7372693cd7e96f15
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