{
  "GSD": {
    "alias": "CVE-2023-49100",
    "id": "GSD-2023-49100"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-49100"
      ],
      "details": "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.",
      "id": "GSD-2023-49100",
      "modified": "2023-12-13T01:20:34.898804Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2023-49100",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "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."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L708",
            "refsource": "MISC",
            "url": "https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L708"
          },
          {
            "name": "https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L714",
            "refsource": "MISC",
            "url": "https://github.com/ARM-software/arm-trusted-firmware/blob/a05414bedc9b1cc35cf0795ce641b6b4db5bc97e/services/std_svc/sdei/sdei_main.c#L714"
          },
          {
            "name": "https://trustedfirmware-a.readthedocs.io/en/latest/security_advisories/security-advisory-tfv-11.html",
            "refsource": "MISC",
            "url": "https://trustedfirmware-a.readthedocs.io/en/latest/security_advisories/security-advisory-tfv-11.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "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."
          }
        ],
        "id": "CVE-2023-49100",
        "lastModified": "2024-02-22T19:07:27.197",
        "metrics": {},
        "published": "2024-02-21T16:15:49.457",
        "references": [
          {
            "source": "cve@mitre.org",
            "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"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}