Description
An issue was discovered in rsn_supp/wpa.c in wpa_supplicant 2.0 through 2.6. Under certain conditions, the integrity of EAPOL-Key messages is not checked, leading to a decryption oracle. An attacker within range of the Access Point and client can abuse the vulnerability to recover sensitive information.
References (10)
Core 10
Core References
Technical Description, Third Party Advisory x_refsource_misc
https://papers.mathyvanhoef.com/woot2018.pdf
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1041438
Mitigation, Patch, Vendor Advisory x_refsource_misc
https://w1.fi/security/2018-1/unauthenticated-eapol-key-decryption.txt
Mitigation, Patch, Third Party Advisory vendor-advisory
x_refsource_freebsd
https://security.FreeBSD.org/advisories/FreeBSD-SA-18:11.hostapd.asc
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:3107
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/08/msg00009.html
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3745-1/
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00013.html
Vendor Advisory x_refsource_confirm
https://cert-portal.siemens.com/productcert/pdf/ssa-344983.pdf
Various Sources x_refsource_misc
https://www.us-cert.gov/ics/advisories/icsa-19-344-01
Scores
CVSS v3
6.5
EPSS
0.0108
EPSS Percentile
78.1%
Attack Vector
ADJACENT_NETWORK
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-924
Status
published
Products (5)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
debian/debian_linux
8.0
w1.fi/wpa_supplicant
2.0 - 2.6
Published
Aug 08, 2018
Tracked Since
Feb 18, 2026