CVE-2023-33242 CRITICAL

CVE-2023-33242: Lindell17 TSS Abort Mishandling

Vendor Lindell Tss Implementations
Product Wallet
Published August 9, 2023
Last update October 10, 2024
View on NVD All CVEs

CVSS base score

9.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 9, 2023 CVE published
October 10, 2024 Record updated