CVE-2019-5061

Publication date 12 December 2019

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
wpa	24.04 LTS noble	Fixed 2:2.9.0-20build1
	23.10 mantic	Fixed 2:2.9.0-20build1
	23.04 lunar	Fixed 2:2.9.0-20build1
	22.10 kinetic	Fixed 2:2.9.0-20build1
	22.04 LTS jammy	Fixed 2:2.9.0-20build1
	21.10 impish	Fixed 2:2.9.0-20build1
	21.04 hirsute	Fixed 2:2.9.0-20build1
	20.10 groovy	Ignored
	20.04 LTS focal	Needs evaluation
	19.10 eoan	Ignored
	19.04 disco	Ignored
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Needs evaluation

Notes

sbeattie

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

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
wpa	Upstream: ?id=018

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
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