CVE-2019-5108 Information

Description

An exploitable denial-of-service vulnerability exists in the Linux kernel prior to mainline 5.3. An attacker could exploit this vulnerability by triggering 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.

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://packetstormsecurity.com/files/156455/Kernel-Live-Patch-Security-Notice-LSN-0063-1.html https://git.kernel.org/linus/3e493173b7841259a08c5c8e5cbe90adb349da7e https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://security.netapp.com/advisory/ntap-20200204-0002/ https://talosintelligence.com/vulnerability_reports/TALOS-2019-0900 https://usn.ubuntu.com/4285-1/ https://usn.ubuntu.com/4286-1/ https://usn.ubuntu.com/4286-2/ https://usn.ubuntu.com/4287-1/ https://usn.ubuntu.com/4287-2/ https://www.debian.org/security/2020/dsa-4698

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5