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CVE-2022-29255

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Date: June 9, 2022

Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions prior to 0.3.4 when a calling an external contract with no return value, the contract address (including side effects) could be evaluated twice. This may result in incorrect outcomes for contracts. This issue has been addressed in v0.3.4.

Language: Python

Severity Score

Related Resources (5)

https://github.com/advisories/GHSA-4v9q-cgpw-cf38
https://github.com/vyperlang/vyper/commit/6b4d8ff185de071252feaa1c319712b2d6577f8d
https://nvd.nist.gov/vuln/detail/CVE-2022-29255
https://github.com/vyperlang/vyper/security/advisories/GHSA-4v9q-cgpw-cf38
https://www.mend.io/vulnerability-database/CVE-2022-29255

Severity Score

Weakness Type (CWE)

Always-Incorrect Control Flow Implementation

CWE-670

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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