CVE Vulnerabilities

CVE-2021-43668

NULL Pointer Dereference

Published: Nov 18, 2021 | Modified: Nov 23, 2021
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

Go-Ethereum 1.10.9 nodes crash (denial of service) after receiving a serial of messages and cannot be recovered. They will crash with runtime error: invalid memory address or nil pointer dereference and arise a SEGV signal.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Go_ethereum Ethereum 1.10.9 (including) 1.10.9 (including)

Potential Mitigations

References