Vulnerability-Lookup

GHSA-36CG-4JFF-5863

Vulnerability from github – Published: 2021-08-25 20:59 – Updated: 2023-06-13 20:41

Summary

Data races in signal-simple

Details

Affected versions of this crate unconditionally implement Send/Sync for SyncChannel. SyncChannel doesn't provide access to &T but merely serves as a channel that consumes and returns owned T.

Users can create UB in safe Rust by sending T: !Send to other threads with SyncChannel::send/recv APIs. Using T = Arc<Cell<_> allows to create data races (which can lead to memory corruption), and using T = MutexGuard allows to unlock a mutex from a thread that didn't lock the mutex.

Severity

8.1 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "signal-simple"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-36446"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-362"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-09T21:44:31Z",
    "nvd_published_at": "2021-08-08T06:15:00Z",
    "severity": "HIGH"
  },
  "details": "Affected versions of this crate unconditionally implement Send/Sync for SyncChannel\u003cT\u003e. SyncChannel\u003cT\u003e doesn\u0027t provide access to \u0026T but merely serves as a channel that consumes and returns owned T.\n\nUsers can create UB in safe Rust by sending T: !Send to other threads with SyncChannel::send/recv APIs. Using T = Arc\u003cCell\u003c_\u003e allows to create data races (which can lead to memory corruption), and using T = MutexGuard\u003cT\u003e allows to unlock a mutex from a thread that didn\u0027t lock the mutex.",
  "id": "GHSA-36cg-4jff-5863",
  "modified": "2023-06-13T20:41:14Z",
  "published": "2021-08-25T20:59:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36446"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kitsuneninetails/signal-rust/issues/2"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/signal-simple/RUSTSEC-2020-0126.md"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2020-0126.html"
    },
    {
      "type": "PACKAGE",
      "url": "http://github.com/kitsuneninetails/signal-rust"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Data races in signal-simple"
}

CVE-2020-36446 (GCVE-0-2020-36446)

Vulnerability from cvelistv5 – Published: 2021-08-08 05:16 – Updated: 2024-08-04 17:30

Summary

An issue was discovered in the signal-simple crate through 2020-11-15 for Rust. There are unconditional implementations of Send and Sync for SyncChannel<T>.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://rustsec.org/advisories/RUSTSEC-2020-0126.html	x_refsource_MISC
https://raw.githubusercontent.com/rustsec/advisor…	x_refsource_MISC

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T17:30:08.043Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            "url": "https://rustsec.org/advisories/RUSTSEC-2020-0126.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/signal-simple/RUSTSEC-2020-0126.md"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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      "descriptions": [
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          "lang": "en",
          "value": "An issue was discovered in the signal-simple crate through 2020-11-15 for Rust. There are unconditional implementations of Send and Sync for SyncChannel\u003cT\u003e."
        }
      ],
      "problemTypes": [
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            {
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              "lang": "en",
              "type": "text"
            }
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-08-08T05:16:50.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
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          ],
          "url": "https://rustsec.org/advisories/RUSTSEC-2020-0126.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/signal-simple/RUSTSEC-2020-0126.md"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-36446",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
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                "vendor_name": "n/a"
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  "cveMetadata": {
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    "datePublished": "2021-08-08T05:16:50.000Z",
    "dateReserved": "2021-08-08T00:00:00.000Z",
    "dateUpdated": "2024-08-04T17:30:08.043Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

RUSTSEC-2020-0126 (CVE-2020-36446)

Vulnerability from osv_rustsec – Published: 2020-11-15 12:00 – Updated: 2023-06-13 13:10 – Source website

Summary

SyncChannel<T> can move 'T: !Send' to other threads

Details

Affected versions of this crate unconditionally implement Send/Sync for SyncChannel<T>. SyncChannel<T> doesn't provide access to &T but merely serves as a channel that consumes and returns owned T.

Users can create UB in safe Rust by sending T: !Send to other threads with SyncChannel::send/recv APIs. Using T = Arc<Cell<_> allows to create data races (which can lead to memory corruption), and using T = MutexGuard<T> allows to unlock a mutex from a thread that didn't lock the mutex.

Severity

8.1 (High)


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

References

URL

Type

	https://crates.io/crates/signal-simple	PACKAGE
	https://rustsec.org/advisories/RUSTSEC-2020-0126.html	ADVISORY
	https://github.com/kitsuneninetails/signal-rust/i…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-corruption",
          "thread-safety"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "signal-simple",
        "purl": "pkg:cargo/signal-simple"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2020-36446",
    "GHSA-36cg-4jff-5863",
    "GHSA-8892-84wf-cg8f"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Affected versions of this crate unconditionally implement Send/Sync for `SyncChannel\u003cT\u003e`.\n`SyncChannel\u003cT\u003e` doesn\u0027t provide access to `\u0026T` but merely serves as a channel that consumes and returns owned `T`.\n\nUsers can create UB in safe Rust by sending `T: !Send` to other threads with `SyncChannel::send/recv` APIs. Using `T = Arc\u003cCell\u003c_\u003e` allows to create data races (which can lead to memory corruption), and using `T = MutexGuard\u003cT\u003e` allows to unlock a mutex from a thread that didn\u0027t lock the mutex.",
  "id": "RUSTSEC-2020-0126",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2020-11-15T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/signal-simple"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2020-0126.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/kitsuneninetails/signal-rust/issues/2"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SyncChannel\u003cT\u003e can move \u0027T: !Send\u0027 to other threads"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-36CG-4JFF-5863

CVE-2020-36446 (GCVE-0-2020-36446)

RUSTSEC-2020-0126 (CVE-2020-36446)

Tags

Sightings

Nomenclature

Related by attack behaviour