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.

CVSS v3.0 NVD

7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

4.25% chance of exploitation in the next 30 days, 91st percentile

Published

2018-07-05

Updated

2024-08-05

Proof-of-concept exploits (1)

• k3v142/CVE-2018-120186★ · 2018-10-20

Security advisories

• ethereum/go-ethereum/pull/16891
• https://peckshield.com/2018/06/27/EPoD
• advisories/GHSA-p5gc-957x-gfw9

References

• CVE Record
• NVD entry