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CVE-2024-32647

April 25, 2024, 6:15 p.m.

Tags

CVSS Score

5.3 / 10

Product(s) Impacted

Vyper

  • 0.3.10 and prior

Description

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `create_from_blueprint` builtin can result in a double eval vulnerability when `raw_args=True` and the `args` argument has side-effects. It can be seen that the `_build_create_IR` function of the `create_from_blueprint` builtin doesn't cache the mentioned `args` argument to the stack. As such, it can be evaluated multiple times (instead of retrieving the value from the stack). No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions exist.

Weaknesses

Date

Published: April 25, 2024, 6:15 p.m.

Last Modified: April 25, 2024, 6:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security-advisories@github.com

CVSS Data

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

Base Score
5.3
Exploitability Score
Impact Score
Base Severity
MEDIUM
CVSS Vector String

The CVSS vector string provides an in-depth view of the vulnerability metrics.

View Vector String

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

References

https://github.com/ security-advisories@github.com

https://github.com/ security-advisories@github.com