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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
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.
References
History
No history.
Status: PUBLISHED
Assigner: WDC PSIRT
Published:
Updated: 2024-08-03T03:28:42.989Z
Reserved: 2022-01-10T00:00:00
Link: CVE-2022-23003
No data.
Status : Modified
Published: 2022-07-29T19:15:08.287
Modified: 2024-11-21T06:47:47.093
Link: CVE-2022-23003
No data.
OpenCVE Enrichment
No data.
EUVD