Ethereum: Security Vulnerabilities
Go Ethereum (aka geth) 1.8.19 allows attackers to cause a denial of service (memory consumption) by rewriting the length of a dynamic array in memory, and then writing data to a single memory location with a large index number, as demonstrated by use of "assembly { mstore }" followed by a "c[0xC800000] = 0xFF" assignment.
CVSS Score
7.5
EPSS Score
0.003
Published
2018-12-24
Py-EVM v0.2.0-alpha.33 allows attackers to make a vm.execute_bytecode call that triggers computation._stack.values with '"stack": [100, 100, 0]' where b'\x' was expected, resulting in an execution failure because of an invalid opcode. This is reportedly related to "smart contracts can be executed indefinitely without gas being paid."
CVSS Score
8.8
EPSS Score
0.008
Published
2018-11-12
cmd/evm/runner.go in Go Ethereum (aka geth) 1.8.17 allows attackers to cause a denial of service (SEGV) via crafted bytecode.
CVSS Score
7.5
EPSS Score
0.004
Published
2018-11-12
In Go Ethereum (aka geth) before 1.8.14, TraceChain in eth/api_tracer.go does not verify that the end block is after the start block.
CVSS Score
7.5
EPSS Score
0.002
Published
2018-09-08
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 Score
7.5
EPSS Score
0.118
Published
2018-07-05
An exploitable improper authorization vulnerability exists in admin_nodeInfo API of cpp-ethereum's JSON-RPC (commit 4e1015743b95821849d001618a7ce82c7c073768). A JSON request can cause an access to the restricted functionality resulting in authorization bypass. An attacker can send JSON to trigger this vulnerability.
CVSS Score
4.0
EPSS Score
0.001
Published
2018-01-19
An exploitable improper authorization vulnerability exists in miner_setGasPrice API of cpp-ethereum's JSON-RPC (commit 4e1015743b95821849d001618a7ce82c7c073768). A JSON request can cause an access to the restricted functionality resulting in authorization bypass. An attacker can send JSON to trigger this vulnerability.
CVSS Score
6.8
EPSS Score
0.001
Published
2018-01-19
An exploitable improper authorization vulnerability exists in miner_stop API of cpp-ethereum's JSON-RPC (commit 4e1015743b95821849d001618a7ce82c7c073768). An attacker can send JSON to trigger this vulnerability.
CVSS Score
4.0
EPSS Score
0.004
Published
2018-01-19
An exploitable unhandled exception vulnerability exists in multiple APIs of CPP-Ethereum JSON-RPC. Specially crafted JSON requests can cause an unhandled exception resulting in denial of service. An attacker can send malicious JSON to trigger this vulnerability.
CVSS Score
7.5
EPSS Score
0.004
Published
2018-01-19
An exploitable information leak/denial of service vulnerability exists in the libevm (Ethereum Virtual Machine) `create2` opcode handler of CPP-Ethereum. A specially crafted smart contract code can cause an out-of-bounds read leading to memory disclosure or denial of service. An attacker can create/send malicious a smart contract to trigger this vulnerability.
CVSS Score
8.2
EPSS Score
0.003
Published
2018-01-19