CVE-2019-9495

The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. Versions of hostapd/wpa_supplicant 2.7 and newer, are not vulnerable to the timing attack described in CVE-2019-9494. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
3.7 LOW
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
certccCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 88%
VendorProductVersion
w1.fihostapd
𝑥
≤ 2.7
w1.fiwpa_supplicant
𝑥
≤ 2.7
opensusebackports_sle
15.0
opensusebackports_sle
15.0:sp1
opensuseleap
15.1
synologyradius_server
3.0
synologyrouter_manager
𝑥
< 1.2.3-8017
debiandebian_linux
8.0
freebsdfreebsd
11.2
freebsdfreebsd
11.2:p2
freebsdfreebsd
11.2:p3
freebsdfreebsd
11.2:p4
freebsdfreebsd
11.2:p5
freebsdfreebsd
11.2:p6
freebsdfreebsd
11.2:p7
freebsdfreebsd
11.2:p8
freebsdfreebsd
11.2:p9
freebsdfreebsd
11.2:rc3
freebsdfreebsd
12.0
freebsdfreebsd
12.0:p1
freebsdfreebsd
12.0:p2
freebsdfreebsd
12.0:p3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
wpa
bullseye (security)
2:2.9.0-21+deb11u2
fixed
bullseye
2:2.9.0-21+deb11u2
fixed
bookworm
2:2.10-12+deb12u2
fixed
bookworm (security)
2:2.10-12+deb12u2
fixed
sid
2:2.10-22
fixed
trixie
2:2.10-22
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
wpa
disco
Fixed 2:2.6-21ubuntu3
released
cosmic
Fixed 2:2.6-18ubuntu1.1
released
bionic
Fixed 2:2.6-15ubuntu2.2
released
xenial
Fixed 2.4-0ubuntu6.4
released
trusty
Fixed 2.1-0ubuntu1.7
released
wpasupplicant
disco
dne
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
References