Vulnerability-Lookup

rustsec-2021-0072

Vulnerability from osv_rustsec

Published

2021-07-07 12:00

Modified

2023-06-13 13:10

Summary

Task dropped in wrong thread when aborting `LocalSet` task

Details

When aborting a task with JoinHandle::abort, the future is dropped in the thread calling abort if the task is not currently being executed. This is incorrect for tasks spawned on a LocalSet.

This can easily result in race conditions as many projects use Rc or RefCell in their Tokio tasks for better performance.

See tokio#3929 for more details.

JSON

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{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-corruption"
        ],
        "cvss": null,
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [
            "tokio::task::JoinHandle::abort"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "tokio",
        "purl": "pkg:cargo/tokio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.0"
            },
            {
              "fixed": "1.5.1"
            },
            {
              "introduced": "1.6.0"
            },
            {
              "fixed": "1.6.3"
            },
            {
              "introduced": "1.7.0"
            },
            {
              "fixed": "1.7.2"
            },
            {
              "introduced": "1.8.0"
            },
            {
              "fixed": "1.8.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2021-38191",
    "GHSA-2grh-hm3w-w7hv"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "When aborting a task with `JoinHandle::abort`, the future is dropped in the\nthread calling abort if the task is not currently being executed. This is\nincorrect for tasks spawned on a `LocalSet`.\n\nThis can easily result in race conditions as many projects use `Rc` or `RefCell`\nin their Tokio tasks for better performance.\n\nSee [tokio#3929][issue] for more details.\n\n[issue]: https://github.com/tokio-rs/tokio/issues/3929",
  "id": "RUSTSEC-2021-0072",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2021-07-07T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/tokio"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0072.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/tokio-rs/tokio/issues/3929"
    }
  ],
  "related": [],
  "severity": [],
  "summary": "Task dropped in wrong thread when aborting `LocalSet` task"
}

CVE-2021-38191 (GCVE-0-2021-38191)

Vulnerability from cvelistv5 – Published: 2021-08-08 05:09 – Updated: 2024-08-04 01:37

Summary

An issue was discovered in the tokio crate before 1.8.1 for Rust. Upon a JoinHandle::abort, a Task may be dropped in the wrong thread.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://rustsec.org/advisories/RUSTSEC-2021-0072.html	x_refsource_MISC
	https://raw.githubusercontent.com/rustsec/advisor…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T01:37:16.274Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://rustsec.org/advisories/RUSTSEC-2021-0072.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tokio/RUSTSEC-2021-0072.md"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in the tokio crate before 1.8.1 for Rust. Upon a JoinHandle::abort, a Task may be dropped in the wrong thread."
        }
      ],
      "problemTypes": [
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            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-08-08T05:09:27",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://rustsec.org/advisories/RUSTSEC-2021-0072.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tokio/RUSTSEC-2021-0072.md"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-38191",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
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        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
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        "problemtype": {
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                  "value": "n/a"
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        "references": {
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            },
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "dateReserved": "2021-08-08T00:00:00",
    "dateUpdated": "2024-08-04T01:37:16.274Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-2GRH-HM3W-W7HV

Vulnerability from github – Published: 2021-08-25 20:55 – Updated: 2023-06-13 22:08

Summary

Race condition in tokio

Details

When aborting a task with JoinHandle::abort, the future is dropped in the thread calling abort if the task is not currently being executed. This is incorrect for tasks spawned on a LocalSet. This can easily result in race conditions as many projects use Rc or RefCell in their Tokio tasks for better performance.

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

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "tokio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.8.0"
            },
            {
              "fixed": "1.8.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "tokio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.7.0"
            },
            {
              "fixed": "1.7.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "tokio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.6.0"
            },
            {
              "fixed": "1.6.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "tokio"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.0"
            },
            {
              "fixed": "1.5.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-38191"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362",
      "CWE-366"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-18T21:30:23Z",
    "nvd_published_at": "2021-08-08T06:15:00Z",
    "severity": "MODERATE"
  },
  "details": "When aborting a task with JoinHandle::abort, the future is dropped in the thread calling abort if the task is not currently being executed. This is incorrect for tasks spawned on a LocalSet. This can easily result in race conditions as many projects use Rc or RefCell in their Tokio tasks for better performance.",
  "id": "GHSA-2grh-hm3w-w7hv",
  "modified": "2023-06-13T22:08:56Z",
  "published": "2021-08-25T20:55:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38191"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tokio-rs/tokio/issues/3929"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/tokio-rs/tokio"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tokio/RUSTSEC-2021-0072.md"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0072.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": "Race condition in tokio"
}

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

rustsec-2021-0072

Vulnerability from osv_rustsec

CVE-2021-38191 (GCVE-0-2021-38191)

GHSA-2GRH-HM3W-W7HV

Tags

Sightings

Nomenclature