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
Link Resource
https://github.com/ethereum/go-ethereum/issues/18289 Exploit Third Party Advisory
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: mitre

Published: 2022-10-03T16:22:05

Updated: 2022-10-03T16:22:05

Reserved: 2022-10-03T00:00:00


Link: CVE-2018-20421

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2018-12-24T03:29:00.353

Modified: 2019-10-03T00:03:26.223


Link: CVE-2018-20421

JSON object: View

cve-icon Redhat Information

No data.

CWE