PT-2019-4255 · Linux+3 · Linux Kernel+3
Publicado
2019-09-09
·
Atualizado
2025-09-29
·
CVE-2019-19036
CVSS v3.1
5.5
Média
| Vetor | AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions through 5.3.12
Description
The issue is related to a NULL pointer dereference in the
btrfs root node function, located in fs/btrfs/ctree.c. This can be triggered because rcu dereference(root->node) can be zero, leading to a potential denial of service. An attacker could exploit this to cause a service disruption.Recommendations
For Linux kernel versions through 5.3.12, update to a version newer than 5.3.12 to resolve the issue.
At the moment, there is no information about other specific mitigation measures for this vulnerability.
Exploit
Correção
NULL Pointer Dereference
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Linux Kernel
Suse
Ubuntu