CVE-2022-23003: Shared secret or Point multiplication of NIST P-256 points with X coordinate of zero
First published: Fri Jul 29 2022(Updated: )
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.
Credit: psirt@wdc.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Westerndigital Sweet B | =1 |
Remedy
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
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Reference Links
Frequently Asked Questions
What is CVE-2022-23003?
CVE-2022-23003 is a vulnerability that occurs when computing a shared secret or point multiplication on the NIST P-256 curve, resulting in an invalid output that may cause errors in other operations.
What is the severity of CVE-2022-23003?
CVE-2022-23003 has a severity rating of 5.3 (medium).
Which software is affected by CVE-2022-23003?
The software affected by CVE-2022-23003 is Western Digital Sweet B version 1.
How can I fix CVE-2022-23003?
To fix CVE-2022-23003, it is recommended to apply the latest security updates or patches provided by Western Digital.
Where can I find more information about CVE-2022-23003?
More information about CVE-2022-23003 can be found on the Western Digital Support website.
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