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CVE-2024-24563— Vyper 输入验证错误漏洞

一分钟漏洞结论

影响对象
vyperlang vyper
利用判断
存在公开或 AI PoC,应优先验证
建议动作
优先检查厂商安全公告和参考链接中的修复版本;无法立即升级时,限制受影响服务暴露并加强监测。

Vyper是EVM 的 Pythonic 智能合约语言。 Vyper 0.3.10及之前版本存在输入验证错误漏洞,该漏洞源于类型检查器允许使用有符号整数作为数组的索引,可能导致拒绝服务。

CVSS 9.8 · Critical EPSS 1.54% · P74
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一、 漏洞 CVE-2024-24563 基础信息

漏洞信息

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Vulnerability Title
Vyper array negative index vulnerability
来源: CVE Program / CVE List V5
Vulnerability Description
Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. Arrays can be keyed by a signed integer, while they are defined for unsigned integers only. The typechecker doesn't throw when spotting the usage of an `int` as an index for an array. The typechecker allows the usage of signed integers to be used as indexes to arrays. The vulnerability is present in different forms in all versions, including `0.3.10`. For ints, the 2's complement representation is used. Because the array was declared very large, the bounds checking will pass Negative values will simply be represented as very large numbers. As of time of publication, a fixed version does not exist. There are three potential vulnerability classes: unpredictable behavior, accessing inaccessible elements and denial of service. Class 1: If it is possible to index an array with a negative integer without reverting, this is most likely not anticipated by the developer and such accesses can cause unpredictable behavior for the contract. Class 2: If a contract has an invariant in the form `assert index < x`, the developer will suppose that no elements on indexes `y | y >= x` are accessible. However, by using negative indexes, this can be bypassed. Class 3: If the index is dependent on the state of the contract, this poses a risk of denial of service. If the state of the contract can be manipulated in such way that the index will be forced to be negative, the array access can always revert (because most likely the array won't be declared extremely large). However, all these the scenarios are highly unlikely. Most likely behavior is a revert on the bounds check.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
对数组索引的验证不恰当
来源: CVE Program / CVE List V5
Vulnerability Title
Vyper 输入验证错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Vyper是EVM 的 Pythonic 智能合约语言。 Vyper 0.3.10及之前版本存在输入验证错误漏洞,该漏洞源于类型检查器允许使用有符号整数作为数组的索引,可能导致拒绝服务。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

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受影响产品

厂商 产品 影响版本 CPE 订阅
vyperlang vyper <= 0.3.10 -

二、漏洞 CVE-2024-24563 的公开POC

# POC 描述 源链接 神龙链接
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Qwen3.6-35B-A3B · 3064 chars
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三、漏洞 CVE-2024-24563 的情报信息

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CVE-2024-24563 厂商安全公告 (1)

CVE-2024-24563 其他参考 (2)

IV. Related Vulnerabilities

V. Comments for CVE-2024-24563

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