PYSEC-2024-209
Vulnerability from pysec - Published: 2024-04-25 18:15 - Updated: 2025-01-19 19:19
VLAI?
Details
Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the sqrt builtin can result in double eval vulnerability when the argument has side-effects. It can be seen that the build_IR function of the sqrt builtin doesn't cache the 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 are available.
Severity ?
5.3 (Medium)
Impacted products
| Name | purl | vyper | pkg:pypi/vyper |
|---|
Aliases
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "vyper",
"purl": "pkg:pypi/vyper"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.4.0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.1.0b1",
"0.1.0b10",
"0.1.0b11",
"0.1.0b12",
"0.1.0b13",
"0.1.0b14",
"0.1.0b15",
"0.1.0b16",
"0.1.0b17",
"0.1.0b2",
"0.1.0b3",
"0.1.0b4",
"0.1.0b5",
"0.1.0b6",
"0.1.0b7",
"0.1.0b8",
"0.1.0b9",
"0.2.1",
"0.2.10",
"0.2.11",
"0.2.12",
"0.2.13",
"0.2.14",
"0.2.15",
"0.2.16",
"0.2.2",
"0.2.3",
"0.2.4",
"0.2.5",
"0.2.6",
"0.2.7",
"0.2.8",
"0.2.9",
"0.3.0",
"0.3.1",
"0.3.10",
"0.3.10rc1",
"0.3.10rc2",
"0.3.10rc3",
"0.3.10rc4",
"0.3.10rc5",
"0.3.2",
"0.3.3",
"0.3.4",
"0.3.5",
"0.3.6",
"0.3.7",
"0.3.8",
"0.3.9",
"0.4.0b1",
"0.4.0b2",
"0.4.0b3",
"0.4.0b4",
"0.4.0b5",
"0.4.0b6",
"0.4.0rc1",
"0.4.0rc2",
"0.4.0rc3",
"0.4.0rc4",
"0.4.0rc5",
"0.4.0rc6"
]
}
],
"aliases": [
"CVE-2024-32649"
],
"details": "Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the `sqrt` builtin can result in double eval vulnerability when the argument has side-effects. It can be seen that the `build_IR` function of the `sqrt` builtin doesn\u0027t cache the 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 are available.\n",
"id": "PYSEC-2024-209",
"modified": "2025-01-19T19:19:01.689044+00:00",
"published": "2024-04-25T18:15:09+00:00",
"references": [
{
"type": "ADVISORY",
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-5jrj-52x8-m64h"
}
],
"related": [
"GHSA-5jrj-52x8-m64h",
"GHSA-5jrj-52x8-m64h"
],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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