PT-2019-4206 · Linux+5 · Linux Kernel+5
Publicado
2019-10-02
·
Atualizado
2024-08-05
·
CVE-2019-19067
CVSS v2.0
7.8
Alta
| Vetor | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.3.8
Description
The issue is related to four memory leaks in the
acp hw init() function in the Linux kernel, which can cause a denial of service due to memory consumption. This can be triggered by failures in mfd add hotplug devices() or pm genpd add device(). Note that third parties dispute the relevance of this issue because the attacker must already have privileges for module loading.Recommendations
To resolve the issue, update to a version of the Linux kernel that is 5.3.8 or later.
As a temporary workaround, consider restricting access to the
acp hw init() function to minimize the risk of exploitation.
Avoid triggering mfd add hotplug devices() or pm genpd add device() failures in the affected kernel versions.Correção
DoS
Memory Leak
Resource Exhaustion
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Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Linux Kernel
Red Hat
Suse
Ubuntu