CVE-2018-12018

High

Description

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductGo Ethereum
PublishedJul 5, 2018
First seenJul 5, 2018

How to fix

Update
  • ethereum go_ethereum1.8.11 or later
  • github.com/ethereum/go-ethereum1.8.11 or later

Affected products

ProductAffected versionsFixed in
ethereum go_ethereumv < 1.8.111.8.11
github.com/ethereum/go-ethereumGov < 1.8.111.8.11

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CVE-2018-12018 · Go Ethereum · Dark Radar