CVE-2023-39363

HIGH8.7EPSS 0.10%

Vyper has incorrectly allocated named re-entrancy locks

發布日:2023/8/9修改日:2024/10/14

也稱為:GHSA-5824-cm3x-3c38PYSEC-2023-142

描述

### Impact 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 either of the following `vyper` versions: `0.2.15`, `0.2.16`, `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) - A secondary function that utilizes the same `key` and would be affected by the improper state caused by the primary function ### Patches https://github.com/vyperlang/vyper/pull/2439, https://github.com/vyperlang/vyper/pull/2514 ### Workarounds Upgrade to 0.3.1 or higher ### References Technical post-mortem report: https://hackmd.io/@vyperlang/HJUgNMhs2

受影響套件(2)

PyPI/vyper>= 0.2.15, < 0.3.1
PyPI/vyperfrom 0

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 4.0	—	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
osv	CVSS 3.1	HIGH8.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H

描述

受影響套件(2)

CVSS 分數

參考連結(8)