Security Advisory

CVE-2018-20421

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2018-12-24 03:00:00

Last updated 2024-09-17 01:41:26

Assigner mitre

State PUBLISHED

Description

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.

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