CVE-2023-33242

Lindell17 TSS Abort Mishandling

Published Aug 9, 2023 CVSS 3.1 · 9.6 Critical EPSS 1.5% KEV · Not listed
Description
Crypto wallets implementing the Lindell17 TSS protocol might allow an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total) because of not adhering to the paper's security proof's assumption regarding handling aborts after a failed signature.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-37411 Crypto wallets implementing the Lindell17 TSS protocol might allow an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total) because of not adhering to the paper's security proof's assumption regarding handling aborts after a failed signature.
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Halborn
Published
Updated
Oct 10, 2024, 12:47 PM
Reserved
May 19, 2023, 3:51 PM
Status
Modified
Published
Aug 9, 2023, 10:15 PM
Modified
Jun 17, 2026, 6:01 AM