CVE Vulnerability

CVE-2018-12018

The GetBlockHeadersMsg handler in the LES protocol implementation in Go Ethereum (aka geth) before 1.8.11 may lead to an access violation because of an integer signedness error for the array index, which allows attackers to launch a Denial of Service attack by sending a packet with a -1 query.Skip value. The vulnerable remote node would be crashed by such an attack immediately, aka the EPoD (Ethereum Packet of Death) issue.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://peckshield.com/2018/06/27/EPoD/ Exploit Third Party Advisory
https://github.com/ethereum/go-ethereum/releases/tag/v1.8.11 Third Party Advisory
https://github.com/ethereum/go-ethereum/pull/16891 Issue Tracking Patch
https://github.com/ethereum/go-ethereum/commit/a5237a27eaf81946a3edb4fafe13ed6359d119e4 Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:*
Information

Published : 2018-07-05 02:29

Updated : 2018-09-04 03:57

NVD link : CVE-2018-12018

Mitre link : CVE-2018-12018

Products Affected
No products.
CWE
CWE-129

Improper Validation of Array Index