Provide references for CVE-2021-33403.
Where can I find more information about CVE-2021-33403?
References are available at: https://cn.etherscan.com/address/0x63e634330a20150dbb61b15648bc73855d6ccf07#code, https://github.com/MRdoulestar/SC-RCVD/blob/main/Vulnerabilities/LNCToken.md.