GHSA-W3G5-2848-2V8R

Vulnerability from github – Published: 2021-08-25 20:57 – Updated: 2021-08-24 18:04
VLAI?
Summary
Data races in generator
Details

The Generator type is an iterable which uses a generator function that yields values. In affected versions of the crate, the provided function yielding values had no Send bounds despite the Generator itself implementing Send.

The generator function lacking a Send bound means that types that are dangerous to send across threads such as Rc could be sent as part of a generator, potentially leading to data races.

This flaw was fixed in commit f7d120a3b by enforcing that the generator function be bound by Send.

Severity ?
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "generator"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-36471"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-18T20:33:21Z",
    "nvd_published_at": "2021-08-08T06:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The `Generator` type is an iterable which uses a generator function that yields\nvalues. In affected versions of the crate, the provided function yielding values\nhad no `Send` bounds despite the `Generator` itself implementing `Send`.\n\nThe generator function lacking a `Send` bound means that types that are\ndangerous to send across threads such as `Rc` could be sent as part of a\ngenerator, potentially leading to data races.\n\nThis flaw was fixed in commit [`f7d120a3b`](https://github.com/Xudong-Huang/generator-rs/commit/f7d120a3b724d06a7b623d0a4306acf8f78cb4f0)\nby enforcing that the generator function be bound by `Send`.",
  "id": "GHSA-w3g5-2848-2v8r",
  "modified": "2021-08-24T18:04:25Z",
  "published": "2021-08-25T20:57:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36471"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Xudong-Huang/generator-rs/issues/27"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Xudong-Huang/generator-rs/commit/f7d120a3b724d06a7b623d0a4306acf8f78cb4f0"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Xudong-Huang/generator-rs"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/generator/RUSTSEC-2020-0151.md"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2020-0151.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Data races in generator"
}


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