FKIE_CVE-2022-46392

Vulnerability from fkie_nvd - Published: 2022-12-15 23:15 - Updated: 2025-11-03 20:15
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Summary
An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. An adversary with access to precise enough information about memory accesses (typically, an untrusted operating system attacking a secure enclave) can recover an RSA private key after observing the victim performing a single private-key operation, if the window size (MBEDTLS_MPI_WINDOW_SIZE) used for the exponentiation is 3 or smaller.
References
cve@mitre.orghttps://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2Release Notes, Third Party Advisory
cve@mitre.orghttps://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0Release Notes, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BR7ZCVKLPGCOEEALUHZMFHXQHR6S4QL/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XMKJ5IMJEPXYAHHU56Z4P2FSYIEAESB/
af854a3a-2127-422b-91ae-364da2661108https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/06/msg00034.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BR7ZCVKLPGCOEEALUHZMFHXQHR6S4QL/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XMKJ5IMJEPXYAHHU56Z4P2FSYIEAESB/
Impacted products
Vendor Product Version
arm mbed_tls *
arm mbed_tls *
fedoraproject fedora 36
fedoraproject fedora 37
To clipboard 

{
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      "lang": "en",
      "value": "An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. An adversary with access to precise enough information about memory accesses (typically, an untrusted operating system attacking a secure enclave) can recover an RSA private key after observing the victim performing a single private-key operation, if the window size (MBEDTLS_MPI_WINDOW_SIZE) used for the exponentiation is 3 or smaller."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en Mbed TLS anterior a 2.28.2 y 3.x anterior a 3.3.0. Un adversario con acceso a informaci\u00f3n suficientemente precisa sobre los accesos a la memoria (normalmente, un sistema operativo no confiable que ataca un enclave seguro) puede recuperar una clave privada RSA despu\u00e9s de observar a la v\u00edctima realizando una \u00fanica operaci\u00f3n con clave privada, si el tama\u00f1o de la ventana (MBEDTLS_MPI_WINDOW_SIZE) utilizada para la exponenciaci\u00f3n es 3 o menor."
    }
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  "id": "CVE-2022-46392",
  "lastModified": "2025-11-03T20:15:57.980",
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
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}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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