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WS-2022-0005
Good to know:
Date: January 7, 2022
In the threshold signature scheme, participants start by dividing secrets into shares using a secret sharing scheme. The Verifiable Secret Sharing scheme generates shares from the user’s IDs but does not properly validate them. Using a malicious ID will make other users reveal their secrets during the secret-sharing procedure. In addition, a second issue resulting from lack of validation could cause nodes to crash when sent maliciously formed user IDs.
Language: PHP
Severity Score
Severity Score
Weakness Type (CWE)
Missing Release of Memory after Effective Lifetime
CWE-401Top Fix
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | HIGH |
| Availability (A): | HIGH |