Vulnerability · Published Nov 25, 2020 · Assigned by GitHub_M
CVE-2020-26242Denial of service in geth
Medium 6.5
In plain English
A medium-severity security flaw in go-ethereum from ethereum. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)1.5%top 26.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.18, there is a Denial-of-service (crash) during block processing. This is fixed in 1.9.18.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/ethereum/go-ethereum | 1.9.18 | GHSA-jm5c-rv3w-w83m |
| Go | github.com/holiman/uint256 | 1.1.1 | GHSA-jm5c-rv3w-w83m |
| Go | github.com/holiman/uint256 | 1.1.1 | GO-2021-0103 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ethereum | go-ethereum | < 1.9.18 |
References
- https://github.com/ethereum/go-ethereum/security/advisories/GHSA-jm5c-rv3w-w83m x_refsource_CONFIRM
- https://blog.ethereum.org/2020/11/12/geth_security_release/ x_refsource_MISC