Vulnerability in Ethereum Go
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.043 (90.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.043 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/ethereum/go-ethereum/releases/tag/v1.8.11 (Third Party Advisory)
- github.com/ethereum/go-ethereum/commit/a5237a27eaf81946a3edb4fafe13ed6359d119e4 (Patch, Third Party Advisory)
- github.com/ethereum/go-ethereum/pull/16891 (Patch, Third Party Advisory, Issue Tracking)
- peckshield.com/2018/06/27/EPoD/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-12018?
- CVE-2018-12018 is a high-severity vulnerability in Ethereum Go, classified under Improper Validation of Array Index. CVSS score: 7.5/10. Published 2018-07-05.
- How severe is CVE-2018-12018?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-12018 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.