Vulnerability-Lookup

rustsec-2020-0068

Vulnerability from osv_rustsec

Published

2020-11-08 12:00

Modified

2023-06-13 13:10

Summary

Unexpected panic in multihash `from_slice` parsing code

Details

In versions prior 0.11.3 it's possible to make from_slice panic by feeding it certain malformed input. It's never documented that from_slice (and from_bytes which wraps it) can panic, and its' return type (Result<Self, DecodeError>) suggests otherwise.

In practice, from_slice/from_bytes is frequently used in networking code (for example in rust-libp2p) and is being called with unsanitized data from untrusted sources. This can allow attackers to cause DoS by causing an unexpected panic in the network client's code.

JSON

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{
  "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": [
            "multihash::digests::MultihashGeneric::from_bytes",
            "multihash::digests::MultihashRefGeneric::from_slice"
          ],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "multihash",
        "purl": "pkg:cargo/multihash"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.11.3"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2020-35909",
    "GHSA-h7qh-3h6f-w79p"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "In versions prior 0.11.3 it\u0027s possible to make `from_slice` panic by feeding it certain malformed input.\nIt\u0027s never documented that `from_slice` (and `from_bytes` which wraps it) can panic, and its\u0027 return type (`Result\u003cSelf, DecodeError\u003e`) suggests otherwise.\n\nIn practice, `from_slice`/`from_bytes` is frequently used in networking code (for example [in rust-libp2p](https://github.com/libp2p/rust-libp2p/blob/7b415d5e7040e45c541f76f2c409e63d4d3249c6/core/src/peer_id.rs#L89)) and is being called with unsanitized data from untrusted sources.\nThis can allow attackers to cause DoS by causing an unexpected `panic` in the network client\u0027s code.",
  "id": "RUSTSEC-2020-0068",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2020-11-08T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/multihash"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2020-0068.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/multiformats/rust-multihash/pull/72"
    }
  ],
  "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": "Unexpected panic in multihash `from_slice` parsing code"
}

CVE-2020-35909 (GCVE-0-2020-35909)

Vulnerability from cvelistv5 – Published: 2020-12-31 08:20 – Updated: 2024-08-04 17:16

Summary

An issue was discovered in the multihash crate before 0.11.3 for Rust. The from_slice parsing code can panic via unsanitized data from a network server.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://rustsec.org/advisories/RUSTSEC-2020-0068.html

x_refsource_MISC

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T17:16:13.180Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://rustsec.org/advisories/RUSTSEC-2020-0068.html"
          }
        ],
        "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 multihash crate before 0.11.3 for Rust. The from_slice parsing code can panic via unsanitized data from a network server."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-12-31T08:20:32",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://rustsec.org/advisories/RUSTSEC-2020-0068.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-35909",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An issue was discovered in the multihash crate before 0.11.3 for Rust. The from_slice parsing code can panic via unsanitized data from a network server."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://rustsec.org/advisories/RUSTSEC-2020-0068.html",
              "refsource": "MISC",
              "url": "https://rustsec.org/advisories/RUSTSEC-2020-0068.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-35909",
    "datePublished": "2020-12-31T08:20:32",
    "dateReserved": "2020-12-31T00:00:00",
    "dateUpdated": "2024-08-04T17:16:13.180Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-H7QH-3H6F-W79P

Vulnerability from github – Published: 2021-08-25 20:49 – Updated: 2023-06-13 20:05

Summary

Unexpected panic in multihash

Details

In versions prior 0.11.3 it's possible to make from_slice panic by feeding it certain malformed input. It's never documented that from_slice (and from_bytes which wraps it) can panic, and its' return type (Result) suggests otherwise. In practice, from_slice/from_bytes is frequently used in networking code and is being called with unsanitized data from untrusted sources. This can allow attackers to cause DoS by causing an unexpected panic in the network client's code..

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": "multihash"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.11.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-35909"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-19T20:51:29Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "In versions prior 0.11.3 it\u0027s possible to make from_slice panic by feeding it certain malformed input. It\u0027s never documented that from_slice (and from_bytes which wraps it) can panic, and its\u0027 return type (Result\u003cSelf, DecodeError\u003e) suggests otherwise. In practice, from_slice/from_bytes is frequently used in networking code and is being called with unsanitized data from untrusted sources. This can allow attackers to cause DoS by causing an unexpected panic in the network client\u0027s code..",
  "id": "GHSA-h7qh-3h6f-w79p",
  "modified": "2023-06-13T20:05:17Z",
  "published": "2021-08-25T20:49:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35909"
    },
    {
      "type": "WEB",
      "url": "https://github.com/multiformats/rust-multihash/pull/72"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/multiformats/rust-multihash"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2020-0068.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": "Unexpected panic in multihash"
}

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-2020-0068

Vulnerability from osv_rustsec

CVE-2020-35909 (GCVE-0-2020-35909)

GHSA-H7QH-3H6F-W79P

Tags

Sightings

Nomenclature