CVE-2023-33242

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.

NVD

Severity: HIGH
CVE ID: CVE-2023-33242
CVSS Score: 8.1
CVSS Metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Halborn

Severity: CRITICAL
CVE ID: CVE-2023-33242
CVSS Score: 9.6
CVSS Metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Refrence: NVDMITRE

Proof Of Concept

d0rb

CVE-2023-33242 PoC

Refrence: GitHub