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CVE-2024-26950

Estado: ModificadaAlta (7.8)—

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: wireguard: netlink: acceda al dispositivo a través de ctx en lugar de peer. el commit anterior solucionó un error que provocaba que se desreferenciara un dispositivo NULL peer->. En realidad, es más fácil y rápido en cuanto a rendimiento obtener el dispositivo desde ctx->wg. Esto también tiene más sentido semánticamente, ya que ctx->wg->peer_allowedips.seq se compara con ctx->allowedips_seq, basándose ambos en ctx. Esto también actúa como una defensa en profundidad contra los pares liberados.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

CWE

Referencias

JSON original (NVD)

Mostrar
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      "source": "nvd@nist.gov",
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwireguard: netlink: access device through ctx instead of peer\n\nThe previous commit fixed a bug that led to a NULL peer->device being\ndereferenced. It's actually easier and faster performance-wise to\ninstead get the device from ctx->wg. This semantically makes more sense\ntoo, since ctx->wg->peer_allowedips.seq is compared with\nctx->allowedips_seq, basing them both in ctx. This also acts as a\ndefence in depth provision against freed peers."
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