GSD-2018-18920
Vulnerability from gsd - Updated: 2023-12-13 01:22Details
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."
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-18920",
"description": "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.\"",
"id": "GSD-2018-18920"
},
"gsd": {
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"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
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"details": "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.\"",
"id": "GSD-2018-18920",
"modified": "2023-12-13T01:22:36.094418Z",
"schema_version": "1.4.0"
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"affected_versions": "Version 0.2.0",
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"cwe_ids": [
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"CWE-119",
"CWE-937"
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"date": "2019-02-04",
"description": "Py-EVM allows attackers to make a `vm.execute_bytecode` calls and to inject arbitrary bytecode.",
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"identifier": "CVE-2018-18920",
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"package_slug": "pypi/py-evm",
"pubdate": "2018-11-12",
"solution": "Unfortunately, there is no solution available yet.",
"title": "Improper Restriction of Operations within the Bounds of a Memory Buffer",
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"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
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"lastModifiedDate": "2019-02-04T13:31Z",
"publishedDate": "2018-11-12T02:29Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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