CVE-2020-26264: Uncontrolled Resource Consumption
Go Ethereum, or “Geth”, is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.25 a denial-of-service vulnerability can make a LES server crash via malicious GetProofsV2 request from a connected LES client. This vulnerability only concerns users explicitly enabling les server; disabling les prevents the exploit. The vulnerability was patched in version 1.9.25.
References
- github.com/advisories/GHSA-r33q-22hv-j29q
- github.com/ethereum/go-ethereum/commit/bddd103a9f0af27ef533f04e06ea429cf76b6d46
- github.com/ethereum/go-ethereum/pull/21896
- github.com/ethereum/go-ethereum/releases/tag/v1.9.25
- github.com/ethereum/go-ethereum/security/advisories/GHSA-r33q-22hv-j29q
- nvd.nist.gov/vuln/detail/CVE-2020-26264
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