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CVE-2024-32648— vyper default functions don't respect nonreentrancy keys

Quick assessment

Affected
vyperlang vyper
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Vyper是EVM 的 Pythonic 智能合约语言。 Vyper 0.3.10 及之前版本存在安全漏洞，该漏洞源于 default 函数不考虑不可重入键，并且不会发出锁。

CVSS 5.3 · Medium EPSS 0.41% · P35

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-32648

Vulnerability Information
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Vulnerability Title
vyper default functions don't respect nonreentrancy keys
Source: CVE Program / CVE List V5
Vulnerability Description
Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. Prior to version 0.3.0, default functions don't respect nonreentrancy keys and the lock isn't emitted. No vulnerable production contracts were found. Additionally, using a lock on a `default` function is a very sparsely used pattern. As such, the impact is low. Version 0.3.0 contains a patch for the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
加锁机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Vyper 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Vyper是EVM 的 Pythonic 智能合约语言。 Vyper 0.3.10 及之前版本存在安全漏洞，该漏洞源于 default 函数不考虑不可重入键，并且不会发出锁。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
vyperlang vyper < 0.3.0 -

II. Public POCs for CVE-2024-32648

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III. Intelligence Information for CVE-2024-32648

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Patches & Fixes for CVE-2024-32648 (1)

Vendor Advisories for CVE-2024-32648 (1)

Same Patch Batch · vyperlang · 2024-04-25 · 6 CVEs total

CVE-2024-32649 5.3 MEDIUM vyper performs double eval of the argument of sqrt
CVE-2024-32481 5.3 MEDIUM vyper's range(start, start + N) reverts for negative numbers
CVE-2024-32647 5.3 MEDIUM vyper performs double eval of raw_args in create_from_blueprint
CVE-2024-32646 5.3 MEDIUM vyper performs double eval of the slice args when buffer from adhoc locations
CVE-2024-32645 5.3 MEDIUM vyper performs incorrect topic logging in raw_log

IV. Related Vulnerabilities

Same product: vyper
Same vendor: vyperlang
Same weakness: CWE-667

V. Comments for CVE-2024-32648

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