CVE-2023-39363

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Source

https://cve.org/CVERecord?id=CVE-2023-39363

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-39363.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2023-39363

Aliases

Published

2023-08-07T18:40:25.615Z

Modified

2026-07-08T07:34:29.209954093Z

Severity

9.1 (Critical) CVSS_V4 - 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 CVSS Calculator

Summary

Vyper incorrectly allocated named re-entrancy locks

Details

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.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/39xxx/CVE-2023-39363.json",
    "cwe_ids": [
        "CWE-863"
    ],
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/vyperlang/vyper

Affected ranges

Type

GIT

Repo

https://github.com/vyperlang/vyper

Events

Introduced

6e7dba7a8b5f29762d3470da4f44634b819c808d

Last affected

8a23febbb2d523f3701f9a7d0aaf361c104a2a37

Database specific

{
    "cpe": [
        "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:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "= 0.2.15"
        },
        {
            "last_affected": "= 0.2.15"
        },
        {
            "introduced": "= 0.2.16"
        },
        {
            "last_affected": "= 0.2.16"
        },
        {
            "introduced": "= 0.3.0"
        },
        {
            "last_affected": "= 0.3.0"
        },
        {
            "introduced": "0.2.15"
        },
        {
            "last_affected": "0.2.15"
        },
        {
            "introduced": "0.2.16"
        },
        {
            "last_affected": "0.2.16"
        },
        {
            "introduced": "0.3.0"
        },
        {
            "last_affected": "0.3.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_STRING"
    ]
}

Affected versions

0.*

0.2.15

0.2.16

0.3.0

= 0.*

= 0.2.15

= 0.2.16

= 0.3.0

v0.*

v0.2.15

v0.2.16

v0.3.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-39363.json"