PT-2019-5684 · Linux+4 · Linux Kernel+4
Jann Horn
·
Publicado
2019-01-29
·
Atualizado
2021-07-22
·
CVE-2019-20934
CVSS v2.0
5.4
Média
| Vetor | AV:L/AC:M/Au:N/C:P/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.2.6
Description
The issue is related to a use-after-free in the
show numa stats() function of the Linux kernel's NUMA system, caused by the inappropriate freeing of NUMA fault statistics. This can potentially allow an attacker to cause a denial of service.Recommendations
For Linux kernel versions prior to 5.2.6, update to version 5.2.6 or later to resolve the issue.
As a temporary workaround, consider restricting access to the
show numa stats() function to minimize the risk of exploitation.Correção
Use After Free
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Linux Kernel
Red Hat
Suse