CVE-2023-33242 (GCVE-0-2023-33242)

Vulnerability from cvelistv5 – Published: 2023-08-09 21:01 – Updated: 2024-10-10 12:47
VLAI?
Summary
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.
Severity ?
9.6 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CWE
  • Private Key Exfiltration
Assigner
References
Impacted products
Vendor Product Version
Lindell TSS Implementations Wallet Affected: 17
Create a notification for this product.
Credits
Fireblocks Research, Nikolaos Makriyannis, Oren Yomtov
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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