Vulnerability · Published Jul 29, 2022 · Assigned by WDC PSIRT
CVE-2022-23002Point Compression/Decompression of NIST P-256 points with X coordinate of zero
Medium 5.3
In plain English
A medium-severity security flaw in Sweet B Library from Western Digital. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).
Official description
When compressing or decompressing a point on the NIST P-256 elliptic curve with an X coordinate of zero, the resulting output is not properly reduced modulo the P-256 field prime and is invalid. The resulting output will cause an error when used in other operations. This may be leveraged by an attacker to cause an error scenario 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Western Digital | Sweet B Library | Sweet B Library – before v2 |
Weakness: CWE-703 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L