CVE-2024-47697
Estado: ModificadaAlta (7.8)—
In the Linux kernel, the following vulnerability has been resolved:
drivers: media: dvb-frontends/rtl2830: fix an out-of-bounds write error
Ensure index in rtl2830_pid_filter does not exceed 31 to prevent out-of-bounds access.
dev->filters is a 32-bit value, so set_bit and clear_bit functions should only operate on indices from 0 to 31. If index is 32, it will attempt to access a non-existent 33rd bit, leading to out-of-bounds access. Change the boundary check from index > 32 to index >= 32 to resolve this issue.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.28%
- Percentil entre todas las CVEs puntuadas: 19
- Fecha de la puntuación: 5/10/2026
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.
- Explotación
T1068Exploitation for Privilege Escalationprivilege escalation85 % - Impacto principal
T1059Command and Scripting Interpreterexecution75 %
Acceso local sin interacción (AV:L/PR:L/UI:N) con permisos de usuario. Out-of-bounds write en kernel permite escalada de privilegios y ejecución de código (C:H/I:H/A:H). CWE-787 confirma escritura fuera de límites que puede llevar a RCE.
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 (2)
CWE
- CWE-787
Referencias
- https://git.kernel.org/stable/c/042b101d7bf70616c4967c286ffa6fcca65babfb
- https://git.kernel.org/stable/c/3dba83d3c81de1368d15a39f22df7b53e306052f
- https://git.kernel.org/stable/c/46d7ebfe6a75a454a5fa28604f0ef1491f9d8d14
- https://git.kernel.org/stable/c/58f31be7dfbc0c84a6497ad51924949cf64b86a2
- https://git.kernel.org/stable/c/7fd6aae7e53b94f4035b1bfce28b8dfa0d0ae470
- https://git.kernel.org/stable/c/86d920d2600c3a48efc2775c1666c1017eec6956
- https://git.kernel.org/stable/c/883f794c6e498ae24680aead55c16f66b06cfc30
- https://git.kernel.org/stable/c/8ffbe7d07b8e76193b151107878ddc1ccc94deb5
- https://git.kernel.org/stable/c/badbd736e6649c4e6d7b4ff7e2b9857acfa9ea94
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
JSON original (NVD)
Mostrar
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