pysec - pysec-2021-366

PYSEC-2021-366

Vulnerability from pysec - Published: 2021-10-05 23:15 - Updated: 2021-10-11 01:16

Details

Vyper is a Pythonic Smart Contract Language for the EVM. In affected versions external functions did not properly validate the bounds of decimal arguments. The can lead to logic errors. This issue has been resolved in version 0.3.0.

Impacted products

Name	purl
vyper	pkg:pypi/vyper

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "vyper",
        "purl": "pkg:pypi/vyper"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.3.0"
            }
          ],
          "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"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-41122",
    "GHSA-c7pr-343r-5c46"
  ],
  "details": "Vyper is a Pythonic Smart Contract Language for the EVM. In affected versions external functions did not properly validate the bounds of decimal arguments. The can lead to logic errors. This issue has been resolved in version 0.3.0.",
  "id": "PYSEC-2021-366",
  "modified": "2021-10-11T01:16:43.215640Z",
  "published": "2021-10-05T23:15:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-c7pr-343r-5c46"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vyperlang/vyper/pull/2447"
    }
  ]
}

GHSA-C7PR-343R-5C46

Vulnerability from github – Published: 2021-10-06 17:48 – Updated: 2024-11-18 22:44

Summary

missing clamps for decimal args in external functions

Details

Impact

The following code does not properly validate that its input is in bounds.

@external
def foo(x: decimal) -> decimal:
    return x

Patches

0.3.0 / #2447

Workarounds

Don't use decimal args

Severity ?

4.3 (Medium)


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

5.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "vyper"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-41122"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-682"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-10-06T13:26:05Z",
    "nvd_published_at": "2021-10-05T23:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nThe following code does not properly validate that its input is in bounds.\n\n```python\n@external\ndef foo(x: decimal) -\u003e decimal:\n    return x\n```\n\n### Patches\n0.3.0 / #2447\n\n### Workarounds\nDon\u0027t use decimal args\n\n",
  "id": "GHSA-c7pr-343r-5c46",
  "modified": "2024-11-18T22:44:51Z",
  "published": "2021-10-06T17:48:46Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-c7pr-343r-5c46"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41122"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vyperlang/vyper/pull/2447"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2021-366.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/vyperlang/vyper"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "missing clamps for decimal args in external functions"
}

CVE-2021-41122 (GCVE-0-2021-41122)

Vulnerability from cvelistv5 – Published: 2021-10-05 23:00 – Updated: 2024-08-04 02:59

Summary

Severity ?

4.3 (Medium)


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

CWE

CWE-682 - Incorrect Calculation

Assigner

GitHub_M

References

URL

Tags

	https://github.com/vyperlang/vyper/security/advis…	x_refsource_CONFIRM
	https://github.com/vyperlang/vyper/pull/2447	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	vyperlang	vyper	Affected: < 0.3.0

Show details on NVD website

JSON

To clipboard

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    ],
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

PYSEC-2021-366

GHSA-C7PR-343R-5C46

Impact

Patches

Workarounds

CVE-2021-41122 (GCVE-0-2021-41122)

Tags

Sightings

Nomenclature