Vulnerability-Lookup

rustsec-2018-0003

Vulnerability from osv_rustsec

Published

2018-07-19 12:00

Modified

2023-06-13 13:10

Summary

Possible double free during unwinding in SmallVec::insert_many

Details

If an iterator passed to SmallVec::insert_many panicked in Iterator::next, destructors were run during unwinding while the vector was in an inconsistent state, possibly causing a double free (a destructor running on two copies of the same value).

This is fixed in smallvec 0.6.3 by ensuring that the vector's length is not updated to include moved items until they have been removed from their original positions. Items may now be leaked if Iterator::next panics, but they will not be dropped more than once.

Thank you to @Vurich for reporting this bug.

JSON

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{
  "affected": [
    {
      "database_specific": {
        "categories": [],
        "cvss": "CVSS:3.0/AV:N/AC:L/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": "smallvec",
        "purl": "pkg:cargo/smallvec"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.2"
            },
            {
              "fixed": "0.3.4"
            },
            {
              "introduced": "0.4.0-0"
            },
            {
              "fixed": "0.4.5"
            },
            {
              "introduced": "0.5.0-0"
            },
            {
              "fixed": "0.5.1"
            },
            {
              "introduced": "0.6.0-0"
            },
            {
              "fixed": "0.6.3"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2018-20991",
    "GHSA-rxr4-x558-x7hw"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "If an iterator passed to `SmallVec::insert_many` panicked in `Iterator::next`,\ndestructors were run during unwinding while the vector was in an inconsistent\nstate, possibly causing a double free (a destructor running on two copies of\nthe same value).\n\nThis is fixed in smallvec 0.6.3 by ensuring that the vector\u0027s length is not\nupdated to include moved items until they have been removed from their\noriginal positions.  Items may now be leaked if `Iterator::next` panics, but\nthey will not be dropped more than once.\n\nThank you to @Vurich for reporting this bug.",
  "id": "RUSTSEC-2018-0003",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2018-07-19T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/smallvec"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2018-0003.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/servo/rust-smallvec/issues/96"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Possible double free during unwinding in SmallVec::insert_many"
}

GHSA-RXR4-X558-X7HW

Vulnerability from github – Published: 2021-08-25 20:42 – Updated: 2023-06-13 20:58

Summary

Double free in smallvec

Details

If an iterator passed to SmallVec::insert_many panicked in Iterator::next, destructors were run during unwinding while the vector was in an inconsistent state, possibly causing a double free (a destructor running on two copies of the same value).

This is fixed in smallvec 0.6.3 by ensuring that the vector's length is not updated to include moved items until they have been removed from their original positions. Items may now be leaked if Iterator::next panics, but they will not be dropped more than once.

Severity ?

9.8 (Critical)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "smallvec"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.2"
            },
            {
              "fixed": "0.6.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-20991"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-19T21:25:34Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "If an iterator passed to SmallVec::insert_many panicked in Iterator::next, destructors were run during unwinding while the vector was in an inconsistent state, possibly causing a double free (a destructor running on two copies of the same value).\n\nThis is fixed in smallvec 0.6.3 by ensuring that the vector\u0027s length is not updated to include moved items until they have been removed from their original positions. Items may now be leaked if Iterator::next panics, but they will not be dropped more than once.",
  "id": "GHSA-rxr4-x558-x7hw",
  "modified": "2023-06-13T20:58:32Z",
  "published": "2021-08-25T20:42:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20991"
    },
    {
      "type": "WEB",
      "url": "https://github.com/servo/rust-smallvec/issues/96"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/servo/rust-smallvec"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2018-0003.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Double free in smallvec"
}

CVE-2018-20991 (GCVE-0-2018-20991)

Vulnerability from cvelistv5 – Published: 2019-08-26 14:23 – Updated: 2024-08-05 12:19

Summary

An issue was discovered in the smallvec crate before 0.6.3 for Rust. The Iterator implementation mishandles destructors, leading to a double free.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://rustsec.org/advisories/RUSTSEC-2018-0003.html

x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T12:19:27.061Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://rustsec.org/advisories/RUSTSEC-2018-0003.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 smallvec crate before 0.6.3 for Rust. The Iterator implementation mishandles destructors, leading to a double free."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-08-26T14:23:19",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://rustsec.org/advisories/RUSTSEC-2018-0003.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-20991",
          "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 smallvec crate before 0.6.3 for Rust. The Iterator implementation mishandles destructors, leading to a double free."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
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                {
                  "lang": "eng",
                  "value": "n/a"
                }
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://rustsec.org/advisories/RUSTSEC-2018-0003.html",
              "refsource": "MISC",
              "url": "https://rustsec.org/advisories/RUSTSEC-2018-0003.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-20991",
    "datePublished": "2019-08-26T14:23:19",
    "dateReserved": "2019-08-25T00:00:00",
    "dateUpdated": "2024-08-05T12:19:27.061Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-2018-0003

Vulnerability from osv_rustsec

GHSA-RXR4-X558-X7HW

CVE-2018-20991 (GCVE-0-2018-20991)

Tags

Sightings

Nomenclature