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GHSA-p5gc-957x-gfw9

Go Ethereum LES protocol implementation vulnerable to Denial of Service

Source: GitHub Advisory Database (reviewed) High CVE-2018-12018

Packages

EcosystemPackageAffectedFixed in
Go github.com/ethereum/go-ethereum < 1.8.11 1.8.11

Details

As written in the advisory (Markdown source, shown as plain text).

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

References

External links from the advisory. They lead to third-party sites.