CVE-2022-23001: medium-severity vulnerability in Western Digital Sweet B Library
Sweet-B Library: Point compress/decompress using the wrong bit for sign
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.7%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
Western Digital · Sweet B LibraryRelated CVEs — Western Digital Sweet B Library
In the same product, most dangerous first.
CVE-2022-23004MEDIUMAlgorithm incorrectly returning error and Invalid unreduced value written to output bufferEPSS 0.7%CVE-2022-23003MEDIUMShared secret or Point multiplication of NIST P-256 points with X coordinate of zeroEPSS 0.7%CVE-2022-23002MEDIUMPoint Compression/Decompression of NIST P-256 points with X coordinate of zeroEPSS 0.7%