PT-2019-4394 · Linux+3 · Linux Kernel+3
Dan Carpenter
·
Publicado
2019-03-15
·
Atualizado
2021-05-28
·
CVE-2019-19227
CVSS v3.1
5.5
Média
| Vetor | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.1
Description
The issue is related to a potential NULL pointer dereference in the AppleTalk subsystem of the Linux kernel. This can lead to a denial of service, specifically in the net/appletalk/aarp.c and net/appletalk/ddp.c components. The problem arises because the register snap client function may return NULL, which can cause issues when unregister snap client is called.
Recommendations
For Linux kernel versions prior to 5.1, update to version 5.1 or later to resolve the issue.
As a temporary workaround, consider restricting access to the AppleTalk subsystem to minimize the risk of exploitation.
Correção
DoS
NULL Pointer Dereference
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Linux Kernel
Suse
Ubuntu