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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 4.25% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-129
- Affected
- ethereum/go ethereum
- Source
- cve@mitre.org
References
- https://github.com/ethereum/go-ethereum/commit/a5237a27eaf81946a3edb4fafe13ed6359d119e4Patch, Third Party Advisory
- https://github.com/ethereum/go-ethereum/pull/16891Issue Tracking, Patch, Third Party Advisory
- https://github.com/ethereum/go-ethereum/releases/tag/v1.8.11Third Party Advisory
- https://peckshield.com/2018/06/27/EPoD/Exploit, Third Party Advisory
- https://github.com/ethereum/go-ethereum/commit/a5237a27eaf81946a3edb4fafe13ed6359d119e4Patch, Third Party Advisory
- https://github.com/ethereum/go-ethereum/pull/16891Issue Tracking, Patch, Third Party Advisory
- https://github.com/ethereum/go-ethereum/releases/tag/v1.8.11Third Party Advisory
- https://peckshield.com/2018/06/27/EPoD/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.