PT-2017-12396 · Linux+5 · Linux Kernel+5
Wu Fan
·
Publicado
2017-11-02
·
Atualizado
2023-02-12
·
CVE-2017-12193
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 4.13.11
Description
The issue is related to the
assoc array insert into terminal node function in lib/assoc array.c, which mishandles node splitting. This allows local users to cause a denial of service, resulting in a NULL pointer dereference and panic, via a crafted application. The keyring key type, and key addition and link creation operations, can be used to demonstrate this issue.Recommendations
For Linux kernel versions prior to 4.13.11, update to version 4.13.11 or later to resolve the issue. As a temporary workaround, consider restricting access to the
assoc array insert into terminal node function until a patch is available.Correção
DoS
NULL Pointer Dereference
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu