FKIE_CVE-2018-18920

Vulnerability from fkie_nvd - Published: 2018-11-12 02:29 - Updated: 2024-11-21 03:56
Severity ?
8.8 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
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."
References
cve@mitre.orghttps://github.com/ethereum/py-evm/issues/1448Exploit, Third Party Advisory
cve@mitre.orghttps://twitter.com/AlexanderFisher/status/1060923428641878019Third Party Advisory
cve@mitre.orghttps://twitter.com/NettaLab/status/1060889400102383617Third Party Advisory
cve@mitre.orghttps://www.reddit.com/r/ethereum/comments/9vkk2g/netta_labs_claim_to_have_found_a_vulnerability_in/e9d3wyx/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/ethereum/py-evm/issues/1448Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://twitter.com/AlexanderFisher/status/1060923428641878019Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://twitter.com/NettaLab/status/1060889400102383617Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.reddit.com/r/ethereum/comments/9vkk2g/netta_labs_claim_to_have_found_a_vulnerability_in/e9d3wyx/Third Party Advisory
Impacted products
Vendor Product Version
ethereum py-evm 0.2.0
To clipboard 

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      "value": "Py-EVM v0.2.0-alpha.33 allows attackers to make a vm.execute_bytecode call that triggers computation._stack.values with \u0027\"stack\": [100, 100, 0]\u0027 where b\u0027\\x\u0027 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.\""
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  "id": "CVE-2018-18920",
  "lastModified": "2024-11-21T03:56:52.257",
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