CVE-2016-4476

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-05-09 · updated 2026-06-17
Weakness: CWE-20

Description

hostapd 0.6.7 through 2.5 and wpa_supplicant 0.6.7 through 2.5 do not reject \n and \r characters in passphrase parameters, which allows remote attackers to cause a denial of service (daemon outage) via a crafted WPS operation.

Affected products

Canonical Ubuntu Linux: 14.04, 16.04, 17.04
w1.fi hostapd: from 0.6.7 through 2.5
Canonical Ltd. wpa_supplicant: from 0.6.7 through 2.5

References

http://www.openwall.com/lists/oss-security/2016/05/03/12
http://www.ubuntu.com/usn/USN-3455-1
http://www.openwall.com/lists/oss-security/2016/05/03/12
http://www.ubuntu.com/usn/USN-3455-1

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