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CVE-2024-57995

Estado: ModificadaAlta (7.8)—

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()

In ath12k_mac_assign_vif_to_vdev(), if arvif is created on a different radio, it gets deleted from that radio through a call to ath12k_mac_unassign_link_vif(). This action frees the arvif pointer. Subsequently, there is a check involving arvif, which will result in a read-after-free scenario.

Fix this by moving this check after arvif is again assigned via call to ath12k_mac_assign_link_vif().

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Acceso local (AV:L, PR:L) sin interacción (UI:N) permite escalada mediante use-after-free en controlador wifi del kernel; ejecución de código del kernel derivada de corrupción de memoria.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()\n\nIn ath12k_mac_assign_vif_to_vdev(), if arvif is created on a different\nradio, it gets deleted from that radio through a call to\nath12k_mac_unassign_link_vif(). This action frees the arvif pointer.\nSubsequently, there is a check involving arvif, which will result in a\nread-after-free scenario.\n\nFix this by moving this check after arvif is again assigned via call to\nath12k_mac_assign_link_vif().\n\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1"
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