{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-28755"
      ],
      "details": "An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When an SSL context was reset with the mbedtls_ssl_session_reset() API, the maximum TLS version to be negotiated was not restored to the configured one. An attacker was able to prevent an Mbed TLS server from establishing any TLS 1.3 connection, potentially resulting in a Denial of Service or forced version downgrade from TLS 1.3 to TLS 1.2.",
      "id": "GSD-2024-28755",
      "modified": "2024-04-02T05:02:55.769284Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2024-28755",
        "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": "An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When an SSL context was reset with the mbedtls_ssl_session_reset() API, the maximum TLS version to be negotiated was not restored to the configured one. An attacker was able to prevent an Mbed TLS server from establishing any TLS 1.3 connection, potentially resulting in a Denial of Service or forced version downgrade from TLS 1.3 to TLS 1.2."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/",
            "refsource": "MISC",
            "url": "https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/"
          },
          {
            "name": "https://hey3e.github.io",
            "refsource": "MISC",
            "url": "https://hey3e.github.io"
          },
          {
            "name": "https://github.com/hey3e",
            "refsource": "MISC",
            "url": "https://github.com/hey3e"
          },
          {
            "name": "https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0",
            "refsource": "CONFIRM",
            "url": "https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When an SSL context was reset with the mbedtls_ssl_session_reset() API, the maximum TLS version to be negotiated was not restored to the configured one. An attacker was able to prevent an Mbed TLS server from establishing any TLS 1.3 connection, potentially resulting in a Denial of Service or forced version downgrade from TLS 1.3 to TLS 1.2."
          },
          {
            "lang": "es",
            "value": "Se descubri\u00f3 un problema en Mbed TLS 3.5.x anterior a 3.6.0. Cuando se restableci\u00f3 un contexto SSL con la API mbedtls_ssl_session_reset(), la versi\u00f3n m\u00e1xima de TLS a negociar no se restaur\u00f3 a la configurada. Un atacante pudo evitar que un servidor Mbed TLS estableciera cualquier conexi\u00f3n TLS 1.3, lo que podr\u00eda provocar una denegaci\u00f3n de servicio o una degradaci\u00f3n forzada de la versi\u00f3n de TLS 1.3 a TLS 1.2."
          }
        ],
        "id": "CVE-2024-28755",
        "lastModified": "2024-04-03T12:38:04.840",
        "metrics": {},
        "published": "2024-04-03T03:15:10.140",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://github.com/hey3e"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://hey3e.github.io"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}