Resource Management Errors Affecting ethereum/go-ethereum package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
1.46% (73rd percentile)

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  • Snyk IDSNYK-UNMANAGED-ETHEREUMGOETHEREUM-2364929
  • published26 Jan 2022
  • disclosed24 Dec 2018
  • creditUnknown

Introduced: 24 Dec 2018

CVE-2018-20421  (opens in a new tab)
CWE-399  (opens in a new tab)

How to fix?

There is no fixed version for ethereum/go-ethereum.

Overview

Affected versions of this package are vulnerable to Resource Management Errors. Go Ethereum (aka geth) 1.8.19 allows attackers to cause a denial of service (memory consumption) by rewriting the length of a dynamic array in memory, and then writing data to a single memory location with a large index number, as demonstrated by use of "assembly { mstore }" followed by a "c[0xC800000] = 0xFF" assignment.

References

CVSS Base Scores

version 3.1