cnvd - cnvd-2018-24156

CNVD-2018-24156

Vulnerability from cnvd - Published: 2018-11-22

Title

Py-EVM拒绝服务漏洞

Description

Py-EVM是一款基于Python实现的以太坊虚拟机。 Py-EVM 0.2.0-alpha.33版本中存在拒绝服务漏洞，攻击者可利用该漏洞造成拒绝服务。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://github.com/ethereum/py-evm

Reference

https://github.com/ethereum/py-evm/issues/1448 https://twitter.com/AlexanderFisher/status/1060923428641878019 https://twitter.com/NettaLab/status/1060889400102383617 https://www.reddit.com/r/ethereum/comments/9vkk2g/netta_labs_claim_to_have_found_a_vulnerability_in/e9d3wyx/

Impacted products

Name
Py-EVM Py-EVM 0.2.0-alpha.33

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-18920"
    }
  },
  "description": "Py-EVM\u662f\u4e00\u6b3e\u57fa\u4e8ePython\u5b9e\u73b0\u7684\u4ee5\u592a\u574a\u865a\u62df\u673a\u3002\n\nPy-EVM 0.2.0-alpha.33\u7248\u672c\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "renardbebe",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://github.com/ethereum/py-evm",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-24156",
  "openTime": "2018-11-22",
  "products": {
    "product": "Py-EVM Py-EVM 0.2.0-alpha.33"
  },
  "referenceLink": "https://github.com/ethereum/py-evm/issues/1448\r\nhttps://twitter.com/AlexanderFisher/status/1060923428641878019\r\nhttps://twitter.com/NettaLab/status/1060889400102383617\r\nhttps://www.reddit.com/r/ethereum/comments/9vkk2g/netta_labs_claim_to_have_found_a_vulnerability_in/e9d3wyx/",
  "serverity": "\u4e2d",
  "submitTime": "2018-11-13",
  "title": "Py-EVM\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2018-18920 (GCVE-0-2018-18920)

Vulnerability from cvelistv5 – Published: 2018-11-12 02:00 – Updated: 2024-08-05 11:23

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."

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://twitter.com/AlexanderFisher/status/106092…	x_refsource_MISC
	https://github.com/ethereum/py-evm/issues/1448	x_refsource_MISC
	https://twitter.com/NettaLab/status/1060889400102383617	x_refsource_MISC
	https://www.reddit.com/r/ethereum/comments/9vkk2g…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2018-24156

CVE-2018-18920 (GCVE-0-2018-18920)

Tags

Sightings

Nomenclature