Felföldi Zsolt

2 exploits Active since Jul 2018
CVE-2018-12018 WRITEUP HIGH WRITEUP
Go Ethereum < 1.8.11 - Denial of Service via LES GetBlockHeadersMsg Integer Signedness Error
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 7.5
CVE-2020-26264 WRITEUP MEDIUM WRITEUP
Go Ethereum < 1.9.25 - Denial of Service via Malicious GetProofsV2 Request
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.25 a denial-of-service vulnerability can make a LES server crash via malicious GetProofsV2 request from a connected LES client. This vulnerability only concerns users explicitly enabling les server; disabling les prevents the exploit. The vulnerability was patched in version 1.9.25.
CVSS 6.5