CVE-2024-24564 Vyper extract32 can ready dirty memory

2024-02-2620:16:13

CWE-125

GitHub_M

www.cve.org

vyper smart contract language ethereum cve-2024-24564 byte array

3.7 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

4.4 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.1%

JSON

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. When using the built-in extract32(b, start), if the start index provided has for side effect to update b, the byte array to extract 32 bytes from, it could be that some dirty memory is read and returned by extract32. This vulnerability affects 0.3.10 and earlier versions.

CNA Affected

[
  {
    "vendor": "vyperlang",
    "product": "vyper",
    "versions": [
      {
        "version": "<= 0.3.10",
        "status": "affected"
      }
    ]
  }
]