CVE-2023-30629

Published Apr 24, 2023

Last updated a year ago

Overview

Description: Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize>0`.
Source: security-advisories@github.com
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 7.5
Impact score: 3.6
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Severity: HIGH

Weaknesses

security-advisories@github.com: CWE-670

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "BA2EC8D5-7723-4112-B674-AB70975FDEEA",
            "versionEndExcluding": "0.3.8",
            "versionStartIncluding": "0.3.1"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

Overview

Risk scores

CVSS 3.1

Weaknesses

Social media

Configurations

References