CVE-2019-9496

EUVD-2019-18870
An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 84%
Affected Products (NVD)
VendorProductVersion
w1.fihostapd
𝑥
≤ 2.7
w1.fiwpa_supplicant
𝑥
≤ 2.7
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
wpa
bookworm
2:2.10-12+deb12u2
fixed
bookworm (security)
2:2.10-12+deb12u2
fixed
bullseye
2:2.9.0-21+deb11u2
fixed
bullseye (security)
2:2.9.0-21+deb11u2
fixed
jessie
ignored
sid
2:2.10-22
fixed
stretch
ignored
trixie
2:2.10-22
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
wpa
bionic
not-affected
cosmic
not-affected
trusty
not-affected
xenial
not-affected
wpasupplicant
bionic
dne
cosmic
dne
trusty
dne
xenial
dne
References