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CVE-2023-32059— Vyper vulnerable to incorrect ordering of arguments for kwargs passed to internal calls

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 0.3.8之前版本存在安全漏洞，该漏洞源于默认参数的内部调用编译不正确。

CVSS 7.5 · High EPSS 0.73% · P53

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2023-32059

Vulnerability Information
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Vulnerability Title
Vyper vulnerable to incorrect ordering of arguments for kwargs passed to internal calls
Source: CVE Program / CVE List V5
Vulnerability Description
Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, internal calls with default arguments are compiled incorrectly. Depending on the number of arguments provided in the call, the defaults are added not right-to-left, but left-to-right. If the types are incompatible, typechecking is bypassed. The ability to pass kwargs to internal functions is an undocumented feature that is not well known about. The issue is patched in version 0.3.8.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用不正确参数次序的函数调用
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 0.3.8之前版本存在安全漏洞，该漏洞源于默认参数的内部调用编译不正确。
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 < 0.3.8 -

II. Public POCs for CVE-2023-32059

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III. Intelligence Information for CVE-2023-32059

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Patches & Fixes for CVE-2023-32059 (1)

Vendor Advisories for CVE-2023-32059 (1)

Same Patch Batch · vyperlang · 2023-05-11 · 3 CVEs total

CVE-2023-32058 7.5 HIGH Vyper vulnerable to integer overflow in loop
CVE-2023-31146 7.5 HIGH Vyper vulnerable to OOB DynArray access when array is on both LHS and RHS of an assignment

IV. Related Vulnerabilities

Same product: vyper
Same vendor: vyperlang
Same weakness: CWE-683

V. Comments for CVE-2023-32059

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