CVE-2023-33241 - CVE House
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Status published Critical CVE-2023-33241

GG18 / GG20 TSS Beta Parameter Vulnerability

Vulnerability Description

Crypto wallets implementing the GG18 or GG20 TSS protocol might allow an attacker to extract a full ECDSA private key by injecting a malicious pallier key and cheating in the range proof. Depending on the Beta parameters chosen in the protocol implementation, the attack might require 16 signatures or more fully exfiltrate the other parties' private key shares.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Fireblocks Research, Nikolaos Makriyannis, Oren Yomtov

References

Affected Vendor

GG TSS Implementations

View all reports →

Affected Software

Wallet
Vulnerable Versions:
18, 20

Timeline

Official Publish: August 9th, 2023
Last Modified: October 10th, 2024
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.