CVE-2023-49100

{"id": "CVE-2023-49100", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 0.8}]}, "published": "2024-02-21T16:15:49.457", "references": [{"url": "https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L708", "source": "cve@mitre.org"}, {"url": "https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L714", "source": "cve@mitre.org"}, {"url": "https://trustedfirmware-a.readthedocs.io/en/latest/security_advisories/security-advisory-tfv-11.html", "source": "cve@mitre.org"}, {"url": "https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L708", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L714", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://trustedfirmware-a.readthedocs.io/en/latest/security_advisories/security-advisory-tfv-11.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "Trusted Firmware-A (TF-A) before 2.10 has a potential read out-of-bounds in the SDEI service. The input parameter passed in register x1 is not validated well enough in the function sdei_interrupt_bind. The parameter is passed to a call to plat_ic_get_interrupt_type. It can be any arbitrary value passing checks in the function plat_ic_is_sgi. A compromised Normal World (Linux kernel) can enable a root-privileged attacker to issue arbitrary SMC calls. Using this primitive, he can control the content of registers x0 through x6, which are used to send parameters to TF-A. Out-of-bounds addresses can be read in the context of TF-A (EL3). Because the read value is never returned to non-secure memory or in registers, no leak is possible. An attacker can still crash TF-A, however."}, {"lang": "es", "value": "Trusted Firmware-A (TF-A) anterior a 2.10 tiene una posible lectura fuera de los l\u00edmites en el servicio SDEI. El par\u00e1metro de entrada pasado en el registro x1 no est\u00e1 suficientemente validado en la funci\u00f3n sdei_interrupt_bind. El par\u00e1metro se pasa a una llamada a plat_ic_get_interrupt_type. Puede ser cualquier valor arbitrario que pase las comprobaciones en la funci\u00f3n plat_ic_is_sgi. Un Normal World (kernel de Linux) comprometido puede permitir que un atacante con privilegios de root emita llamadas SMC arbitrarias. Usando esta primitiva, puede controlar el contenido de los registros x0 a x6, que se utilizan para enviar par\u00e1metros a TF-A. Las direcciones fuera de los l\u00edmites se pueden leer en el contexto de TF-A (EL3). Debido a que el valor le\u00eddo nunca se devuelve a la memoria no segura o a los registros, no es posible ninguna fuga. Sin embargo, un atacante a\u00fan puede bloquear TF-A."}], "lastModified": "2024-11-21T08:32:49.403", "sourceIdentifier": "cve@mitre.org"}