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CVE-2019-5061

Published: 12 December 2019

An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP to send IAPP location updates for stations, before the required authentication process has completed. This could lead to different denial of service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby Aps of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.

Notes

AuthorNote
sbeattie
upstream fix appears to be to remove (the incomplete) IAPP support completely.

Priority

Low

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
wpa
Launchpad, Ubuntu, Debian
xenial Needs triage

jammy
Released (2:2.9.0-20build1)
kinetic
Released (2:2.9.0-20build1)
lunar
Released (2:2.9.0-20build1)
bionic Needs triage

disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

groovy Ignored
(end of life)
hirsute
Released (2:2.9.0-20build1)
impish
Released (2:2.9.0-20build1)
trusty Needs triage

upstream Needs triage

mantic
Released (2:2.9.0-20build1)
Patches:
upstream: https://w1.fi/cgit/hostap/commit/?id=018edec9b2bd3db20605117c32ff79c1e625c432
Binaries built from this source package are in Universe and so are supported by the community.

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H