PoC Index

CVE-2023-33242

CRITICAL 9.6EPSS 1.5%

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.

CVSS v3.1
8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v3.1
9.6 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
EPSS
1.51% chance of exploitation in the next 30 days, 73th percentile
Published
2023-08-09
Updated
2024-10-10

Proof-of-concept exploits (2)

References

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