CVE-2023-39363

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:vyperlang:vyper:0.2.15:*:*:*:*:python:*:*
cpe:2.3:a:vyperlang:vyper:0.2.16:*:*:*:*:python:*:*
cpe:2.3:a:vyperlang:vyper:0.3.0:*:*:*:*:python:*:*

History

18 Sep 2023, 21:15

Type Values Removed Values Added
Summary Vyer 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. 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.

11 Aug 2023, 17:55

Type Values Removed Values Added
References (MISC) https://github.com/vyperlang/vyper/security/advisories/GHSA-5824-cm3x-3c38 - (MISC) https://github.com/vyperlang/vyper/security/advisories/GHSA-5824-cm3x-3c38 - Exploit, Patch, Third Party Advisory
References (MISC) https://hackmd.io/@LlamaRisk/BJzSKHNjn - (MISC) https://hackmd.io/@LlamaRisk/BJzSKHNjn - Exploit, Third Party Advisory
References (MISC) https://hackmd.io/@vyperlang/HJUgNMhs2 - (MISC) https://hackmd.io/@vyperlang/HJUgNMhs2 - Exploit, Third Party Advisory
References (MISC) https://github.com/vyperlang/vyper/pull/2514 - (MISC) https://github.com/vyperlang/vyper/pull/2514 - Patch
References (MISC) https://github.com/vyperlang/vyper/pull/2439 - (MISC) https://github.com/vyperlang/vyper/pull/2439 - Patch
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.9
First Time Vyperlang vyper
Vyperlang
CPE cpe:2.3:a:vyperlang:vyper:0.2.16:*:*:*:*:python:*:*
cpe:2.3:a:vyperlang:vyper:0.2.15:*:*:*:*:python:*:*
cpe:2.3:a:vyperlang:vyper:0.3.0:*:*:*:*:python:*:*

07 Aug 2023, 19:30

Type Values Removed Values Added
New CVE

Information

Published : 2023-08-07 19:15

Updated : 2024-10-11 14:15


NVD link : CVE-2023-39363

Mitre link : CVE-2023-39363

CVE.ORG link : CVE-2023-39363


JSON object : View

Products Affected

vyperlang

  • vyper
CWE
CWE-863

Incorrect Authorization