SB2021010305 - Security restrictions bypass in Stable Yield Credit (yCREDIT)
Published: January 3, 2021
Security Bulletin ID
SB2021010305
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Incorrect calculation (CVE-ID: CVE-2021-3004)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to incorrect calculation performed by the application. The _deposit function in the smart contract implementation for Stable Yield Credit (yCREDIT), an Ethereum token, has certain incorrect calculations. An attacker can obtain more yCREDIT tokens than they should.
Note, the vulnerability has been exploited in the wild in January 2021.
Remediation
Install update from vendor's website.