What’s Vulnerable › Vulnerabilities
CVE-2022-23001: Sweet-B Library: Point compress/decompress using the wrong bit for sign
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2022-07-29 · updated 2026-06-17
- Weakness: CWE-682
Description
When compressing or decompressing elliptic curve points using the Sweet B library, an incorrect choice of sign bit is used. An attacker with user level privileges and no other user's assistance can exploit this vulnerability with only knowledge of the public key and the library. The resulting output may cause an error when used in other operations; for instance, verification of a valid signature under a decompressed public key may fail. 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
References
- https://www.westerndigital.com/support/product-security/wdc-22013-sweet-b-incorrect-output-vulnerabilities
- https://www.westerndigital.com/support/product-security/wdc-22013-sweet-b-incorrect-output-vulnerabilities
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