The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3249-1 mbedtls security update
EUVD EUVD EUVD-2019-8022 The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel attacks.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T01:47:14.077Z

Reserved: 2019-10-21T00:00:00.000Z

Link: CVE-2019-18222

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-01-23T17:15:11.893

Modified: 2024-11-21T04:32:52.030

Link: CVE-2019-18222

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses