Limited denial of service via unreduced P-256 output
Published Jul 29, 2022 · Updated Aug 3, 2024
Improper handling in Sweet B Library before v2 allows remote attackers to trigger limited denial of service via crafted NIST P-256 points. Point compression or decompression with an X coordinate of zero emits an invalid value that is not reduced modulo the P-256 field prime, and later elliptic-curve operations return an error. Exploitation requires an application to process attacker-influenced curve points; impact is limited to disrupting the affected user's operation and does not extend to other components.
Summary
What happened
Improper handling in Sweet B Library before v2 allows remote attackers to trigger limited denial of service via crafted NIST P-256 points. Point compression or decompression with an X coordinate of zero emits an invalid value that is not reduced modulo the P-256 field prime, and later elliptic-curve operations return an error. Exploitation requires an application to process attacker-influenced curve points; impact is limited to disrupting the affected user's operation and does not extend to other components.
The record
- CVE
- CVE-2022-23002
- Published
- Jul 29, 2022
- Updated
- Aug 3, 2024
- Vendor
- Western Digital Corporation
- Product
- Sweet B Library
- Classifications
- CWE-703, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 29, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=Sweet B Library <v2
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
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Your stack
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