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CVE-2022-49163

Estado: ModificadaAlta (7.1)—

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

media: imx-jpeg: fix a bug of accessing array out of bounds

When error occurs in parsing jpeg, the slot isn't acquired yet, it may be the default value MXC_MAX_SLOTS. If the driver access the slot using the incorrect slot number, it will access array out of bounds. The result is the driver will change num_domains, which follows slot_data in struct mxc_jpeg_dev. Then the driver won't detach the pm domain at rmmod, which will lead to kernel panic when trying to insmod again.

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) sin interacción (UI:N) con privilegios (PR:L) → escalada. Out-of-bounds permite corrupción de memoria (num_domains) causando panic y DoS.

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

Execution PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationFilter Network Traffic

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: imx-jpeg: fix a bug of accessing array out of bounds\n\nWhen error occurs in parsing jpeg, the slot isn't acquired yet, it may\nbe the default value MXC_MAX_SLOTS.\nIf the driver access the slot using the incorrect slot number, it will\naccess array out of bounds.\nThe result is the driver will change num_domains, which follows\nslot_data in struct mxc_jpeg_dev.\nThen the driver won't detach the pm domain at rmmod, which will lead to\nkernel panic when trying to insmod again."
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