CVE-2023-42753
Full vulnerability record from the local CVENow database.
Description
An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash the system or potentially escalate their privileges on the system.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2023-09-25 21:15:15.923000
Last modified
2026-11-07 12:17:34.060000
View original CVE JSON
{
"id": "CVE-2023-42753",
"sourceIdentifier": "[email protected]",
"published": "2023-09-25T21:15:15.923",
"lastModified": "2026-11-07T12:17:34.060",
"vulnStatus": "Modified",
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"value": "An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash the system or potentially escalate their privileges on the system."
},
{
"lang": "es",
"value": "Se encontró una vulnerabilidad de indexación de matrices en el subsistema netfilter del kernel de Linux. Una macro faltante podría provocar un error de cálculo del desplazamiento de la matriz `h->nets`, proporcionando a los atacantes la primitiva de incrementar/disminuir arbitrariamente un búfer de memoria fuera de límites. Este problema puede permitir que un usuario local bloquee el sistema o potencialmente aumente sus privilegios en el sistema."
}
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