CVE-2022-46392

2022-12-1523:15:10

CWE-203

mitre

web.nvd.nist.gov

170

cve-2022-46392

mbed tls

security vulnerability

rsa

private key

nvd

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

AI Score

5.2

Confidence

High

EPSS

0.001

Percentile

44.2%

JSON

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.

Affected configurations

Nvd

Node

armmbed_tlsRange<2.28.2

armmbed_tlsRange3.0.0–3.3.0

Node

fedoraprojectfedoraMatch36

fedoraprojectfedoraMatch37

VendorProductVersionCPE
armmbed_tls*cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
fedoraprojectfedora36cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
fedoraprojectfedora37cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
arm	mbed_tls	*	cpe:2.3:a:arm:mbed_tls::::::::
fedoraproject	fedora	36	cpe:2.3:o:fedoraproject:fedora:36:::::::*
fedoraproject	fedora	37	cpe:2.3:o:fedoraproject:fedora:37:::::::*