Vulnerability-Lookup

RUSTSEC-2020-0043 (CVE-2020-35896)

Vulnerability from osv_rustsec – Published: 2020-09-25 12:00 – Updated: 2023-06-13 13:10 – Source website

Summary

Insufficient size checks in outgoing buffer in ws allows remote attacker to run the process out of memory

Details

Affected versions of this crate did not properly check and cap the growth of the outgoing buffer.

This allows a remote attacker to take down the process by growing the buffer of their (single) connection until the process runs out of memory it can allocate and is killed.

The flaw was corrected in the parity-ws fork (>=0.10.0) by disconnecting a client when the buffer runs full.

Severity

7.5 (High)


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

References

URL

Type

	https://crates.io/crates/ws	PACKAGE
	https://rustsec.org/advisories/RUSTSEC-2020-0043.html	ADVISORY
	https://github.com/housleyjk/ws-rs/issues/291	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "denial-of-service"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "ws",
        "purl": "pkg:cargo/ws"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2020-35896",
    "GHSA-rh7x-ppxx-p34c"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Affected versions of this crate did not properly check and cap the growth of the outgoing buffer.\n\nThis allows a remote attacker to take down the process by growing the buffer of their (single) connection until the process runs out of memory it can allocate and is killed.\n\nThe flaw was corrected in the [`parity-ws` fork](https://crates.io/crates/parity-ws) (\u003e=0.10.0) by [disconnecting a client when the buffer runs full](https://github.com/housleyjk/ws-rs/pull/328).",
  "id": "RUSTSEC-2020-0043",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2020-09-25T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/ws"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2020-0043.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/housleyjk/ws-rs/issues/291"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Insufficient size checks in outgoing buffer in ws allows remote attacker to run the process out of memory"
}

CVE-2020-35896 (GCVE-0-2020-35896)

Vulnerability from cvelistv5 – Published: 2020-12-31 08:23 – Updated: 2024-08-04 17:16

Summary

An issue was discovered in the ws crate through 2020-09-25 for Rust. The outgoing buffer is not properly limited, leading to a remote memory-consumption attack.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2230 records in the last 180 days details

References

1 reference

URL	Tags
https://rustsec.org/advisories/RUSTSEC-2020-0043.html	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T17:16:13.175Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://rustsec.org/advisories/RUSTSEC-2020-0043.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "version": "n/a"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in the ws crate through 2020-09-25 for Rust. The outgoing buffer is not properly limited, leading to a remote memory-consumption attack."
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      ],
      "problemTypes": [
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            {
              "description": "n/a",
              "lang": "en",
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2020-12-31T08:23:25.000Z",
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      "references": [
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          "url": "https://rustsec.org/advisories/RUSTSEC-2020-0043.html"
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    "datePublished": "2020-12-31T08:23:25.000Z",
    "dateReserved": "2020-12-31T00:00:00.000Z",
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    "state": "PUBLISHED"
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}

GHSA-RH7X-PPXX-P34C

Vulnerability from github – Published: 2021-08-25 20:49 – Updated: 2021-08-19 20:53

Summary

Insufficient size checks in ws

Details

An issue was discovered in the ws crate through 2020-09-25 for Rust. The outgoing buffer is not properly limited, leading to a remote memory-consumption attack.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/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": "ws"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.9.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-35896"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-19T20:53:37Z",
    "nvd_published_at": "2020-12-31T10:15:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in the ws crate through 2020-09-25 for Rust. The outgoing buffer is not properly limited, leading to a remote memory-consumption attack.",
  "id": "GHSA-rh7x-ppxx-p34c",
  "modified": "2021-08-19T20:53:37Z",
  "published": "2021-08-25T20:49:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35896"
    },
    {
      "type": "WEB",
      "url": "https://github.com/housleyjk/ws-rs/issues/291"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/housleyjk/ws-rs"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2020-0043.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Insufficient size checks in ws"
}

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.

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RUSTSEC-2020-0043 (CVE-2020-35896)

CVE-2020-35896 (GCVE-0-2020-35896)

GHSA-RH7X-PPXX-P34C

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