Vulnerability in Lindell17 Project
CVE-2023-33242
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.
EPSS: 0.011 (62.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosures@halborn.com (Third Party Advisory)
- disclosures@halborn.com (Exploit)
- disclosures@halborn.com (Exploit)
- disclosures@halborn.com (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-33242?
- CVE-2023-33242 is a critical-severity vulnerability in Lindell17 Project, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.6/10. Published 2023-08-09.
- How severe is CVE-2023-33242?
- Critical severity. CVSS v3 base score is 9.6 out of 10.
- Is CVE-2023-33242 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.