PT-2019-4496 · Linux+5 · Linux Kernel+5
Publicado
2019-09-11
·
Atualizado
2022-06-17
·
CVE-2019-5108
CVSS v3.1
7.4
Alta
| Vetor | AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.3
Description
The issue is related to insufficient input validation and incorrect implementation of functions in the Linux kernel. It can be exploited by a remote attacker to cause a denial-of-service by sending IAPP location updates for stations before the required authentication process has completed, potentially leading to CAM table attacks or traffic flapping by faking existing clients in nearby APs. An attacker can forge
Authentication and Association Request packets to trigger this issue.Recommendations
For Linux kernel versions prior to 5.3, update to version 5.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the
IAPP protocol to minimize the risk of exploitation. Avoid using the IAPP protocol for location updates until the issue is resolved.Exploit
Correção
DoS
RCE
Improper Authentication
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Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu