CVE-2020-26264
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductGo Ethereum
PublishedDec 11, 2020
First seenDec 11, 2020
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- ethereum go_ethereum1.9.25 or later
- github.com/ethereum/go-ethereum1.9.25 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ethereum go_ethereum | v < 1.9.25 | 1.9.25 |
| github.com/ethereum/go-ethereumGo | v < 1.9.25 | 1.9.25 |
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