When computing a shared secret or point multiplication on the NIST P-256 curve that results in an X coordinate of zero, the resulting output is not properly reduced modulo the P-256 field prime and is invalid. The resulting output may cause an error when used in other operations. This may be leveraged by an attacker to cause an error scenario or incorrect choice of session key in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components.
Advisories
Source ID Title
EUVD EUVD EUVD-2022-28114 When computing a shared secret or point multiplication on the NIST P-256 curve that results in an X coordinate of zero, the resulting output is not properly reduced modulo the P-256 field prime and is invalid. The resulting output may cause an error when used in other operations. This may be leveraged by an attacker to cause an error scenario or incorrect choice of session key in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components.
Fixes

Solution

The vulnerability was addressed by fully reducing the output modulo the field prime. To get the latest version of the Sweet B library, update your local repository from https://github.com/westerndigitalcorporation/sweet-b


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: WDC PSIRT

Published:

Updated: 2024-08-03T03:28:42.989Z

Reserved: 2022-01-10T00:00:00

Link: CVE-2022-23003

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-07-29T19:15:08.287

Modified: 2024-11-21T06:47:47.093

Link: CVE-2022-23003

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.