PT-2018-2601 · Linux+5 · Linux Kernel+5
Zhipeng Xie
·
Publicado
2018-04-06
·
Atualizado
2023-08-16
·
CVE-2018-20784
CVSS v3.1
9.8
Crítica
| Vetor | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 4.20.2
Description
The issue is related to the implementation of the
update blocked averages() function in the Linux kernel, which can lead to an infinite loop due to an unreachable exit condition. This can be exploited by a remote attacker to cause a denial of service. The vulnerability is caused by the mishandling of leaf cfs rq's in the kernel/sched/fair.c file, allowing attackers to induce a high load and potentially have other unspecified impacts.Recommendations
For Linux kernel versions prior to 4.20.2, update to version 4.20.2 or later to resolve the issue.
As a temporary workaround, consider restricting system load to minimize the risk of exploitation.
Correção
DoS
Infinite Loop
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu