CVE-2022-46392

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

History

21 Nov 2024, 07:30

Type Values Removed Values Added
References () https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2 - Release Notes, Third Party Advisory () https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.2 - Release Notes, Third Party Advisory
References () https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0 - Release Notes, Third Party Advisory () https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.3.0 - Release Notes, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BR7ZCVKLPGCOEEALUHZMFHXQHR6S4QL/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4BR7ZCVKLPGCOEEALUHZMFHXQHR6S4QL/ -
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XMKJ5IMJEPXYAHHU56Z4P2FSYIEAESB/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XMKJ5IMJEPXYAHHU56Z4P2FSYIEAESB/ -
Summary
  • (es) Se descubrió un problema en Mbed TLS anterior a 2.28.2 y 3.x anterior a 3.3.0. Un adversario con acceso a información 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 después de observar a la víctima realizando una única operación con clave privada, si el tamaño de la ventana (MBEDTLS_MPI_WINDOW_SIZE) utilizada para la exponenciación es 3 o menor.

Information

Published : 2022-12-15 23:15

Updated : 2025-04-21 15:15


NVD link : CVE-2022-46392

Mitre link : CVE-2022-46392

CVE.ORG link : CVE-2022-46392


JSON object : View

Products Affected

fedoraproject

  • fedora

arm

  • mbed_tls
CWE
CWE-203

Observable Discrepancy