CVEvulnerability
CVE-2023-33242
8.1 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-08-09
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.6 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
- CVSS 3.1 ([email protected])
- 8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-74
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.
Affected configurations
• lindell17 project lindell17
Related
Weakness · CWE (1)
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness
References
- https://eprint.iacr.org/2017/552.pdf Exploit, Third Party Advisory
- https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23 Exploit
- https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc Exploit
- https://www.fireblocks.com/blog/lindell17-abort-vulnerability-technical-report/ Third Party Advisory
- https://eprint.iacr.org/2017/552.pdf Exploit, Third Party Advisory
- https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23 Exploit
- https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc Exploit
- https://www.fireblocks.com/blog/lindell17-abort-vulnerability-technical-report/ Third Party Advisory