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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-39363 Detail

Current Description

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine (EVM). In versions 0.2.15, 0.2.16 and 0.3.0, named re-entrancy locks are allocated incorrectly. Each function using a named re-entrancy lock gets a unique lock regardless of the key, allowing cross-function re-entrancy in contracts compiled with the susceptible versions. A specific set of conditions is required to result in misbehavior of affected contracts, specifically: a `.vy` contract compiled with `vyper` versions `0.2.15`, `0.2.16`, or `0.3.0`; a primary function that utilizes the `@nonreentrant` decorator with a specific `key` and does not strictly follow the check-effects-interaction pattern (i.e. contains an external call to an untrusted party before storage updates); and a secondary function that utilizes the same `key` and would be affected by the improper state caused by the primary function. Version 0.3.1 contains a fix for this issue.


View Analysis Description

Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
CVSS-BT 9.1 CRITICAL
Vector:  CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:A

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/vyperlang/vyper/pull/2439 Patch 
https://github.com/vyperlang/vyper/pull/2439 Patch 
https://github.com/vyperlang/vyper/pull/2514 Patch 
https://github.com/vyperlang/vyper/pull/2514 Patch 
https://github.com/vyperlang/vyper/security/advisories/GHSA-5824-cm3x-3c38 Exploit  Patch  Third Party Advisory 
https://github.com/vyperlang/vyper/security/advisories/GHSA-5824-cm3x-3c38 Exploit  Patch  Third Party Advisory 
https://hackmd.io/@LlamaRisk/BJzSKHNjn Exploit  Third Party Advisory 
https://hackmd.io/@LlamaRisk/BJzSKHNjn Exploit  Third Party Advisory 
https://hackmd.io/@vyperlang/HJUgNMhs2 Exploit  Third Party Advisory 
https://hackmd.io/@vyperlang/HJUgNMhs2 Exploit  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-863 Incorrect Authorization GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-39363
NVD Published Date:
08/07/2023
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.