CVE-2018-12018
Go Ethereum LES protocol implementation vulnerable to Denial of Service
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2018-12018- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-129
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2018-12018- Updated
- 2026-11-02
EUVDEUVD-2022-4685 No score
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.
- Record
EUVD-2022-4685- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p5gc-957x-gfw9
Go Ethereum LES protocol implementation vulnerable to Denial of Service
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.
Specific Go Packages Affected
github.com/ethereum/go-ethereum/les
- Record
GHSA-p5gc-957x-gfw9- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-129
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2018-12018- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-p5gc-957x-gfw9
Go Ethereum LES protocol implementation vulnerable to Denial of Service
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.
Specific Go Packages Affected
github.com/ethereum/go-ethereum/les
- Record
GHSA-p5gc-957x-gfw9- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-129
- Updated
- 2026-11-02
OSVGO-2021-0075 No score
Panic due to improper validation of RPC messages in github.com/ethereum/go-ethereum
Due to improper argument validation in RPC messages, a maliciously crafted message can cause a panic, leading to denial of service.
- Record
GO-2021-0075- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/ethereum/go-ethereumGo |
before 1.8.11 | 1.8.11 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | k3v142/CVE-2018-12018 | 2018-10-19 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-12018 is a high vulnerability (CVSS 7.5) in Ethereum Go Ethereum, published July 5, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 4.25%, the 91st percentile. Fixed in github.com/ethereum/go-ethereum 1.8.11.
References
github.com/ethereum/go-ethereum/releases/tag/v1.8.11
peckshield.com/2018/06/27/EPoD
nvd.nist.gov/vuln/detail/CVE-2018-12018
pkg.go.dev/vuln/GO-2021-0075
web.archive.org/web/20180628022133/https://peckshield.com/2018/06/27/EPoD