Vulnerability-Lookup

rustsec-2021-0032

Vulnerability from osv_rustsec

Published

2021-03-01 12:00

Modified

2023-06-13 13:10

Summary

Deserializing an array can drop uninitialized memory on panic

Details

The read_bytes_default_le function for [T; n] arrays, used to deserialize arrays of T from bytes created a [T; n] array with std::mem::uninitialized and then called T's deserialization method.

If T's deserialization method panicked, the uninitialized memory could drop invalid objects.

This flaw was corrected in a535678 by removing the unsafe block and using a .map function to deserialize each element of the array instead.

JSON

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{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-corruption"
        ],
        "cvss": "CVSS:3.1/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": "byte_struct",
        "purl": "pkg:cargo/byte_struct"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.6.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2021-28033",
    "GHSA-8fgg-5v78-6g76"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "The `read_bytes_default_le` function for `[T; n]` arrays, used to deserialize\narrays of `T` from bytes created a `[T; n]` array with `std::mem::uninitialized`\nand then called `T`\u0027s deserialization method.\n\nIf `T`\u0027s deserialization method panicked, the uninitialized memory could drop\ninvalid objects.\n\nThis flaw was corrected in `a535678` by removing the unsafe block and using\na `.map` function to deserialize each element of the array instead.",
  "id": "RUSTSEC-2021-0032",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2021-03-01T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/byte_struct"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0032.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/wwylele/byte-struct-rs/issues/1"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Deserializing an array can drop uninitialized memory on panic"
}

CVE-2021-28033 (GCVE-0-2021-28033)

Vulnerability from cvelistv5 – Published: 2021-03-05 08:38 – Updated: 2024-08-03 21:33

Summary

An issue was discovered in the byte_struct crate before 0.6.1 for Rust. There can be a drop of uninitialized memory if a certain deserialization method panics.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://rustsec.org/advisories/RUSTSEC-2021-0032.html

x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T21:33:17.141Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://rustsec.org/advisories/RUSTSEC-2021-0032.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 byte_struct crate before 0.6.1 for Rust. There can be a drop of uninitialized memory if a certain deserialization method panics."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-05T08:38:21",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://rustsec.org/advisories/RUSTSEC-2021-0032.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-28033",
          "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 byte_struct crate before 0.6.1 for Rust. There can be a drop of uninitialized memory if a certain deserialization method panics."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://rustsec.org/advisories/RUSTSEC-2021-0032.html",
              "refsource": "MISC",
              "url": "https://rustsec.org/advisories/RUSTSEC-2021-0032.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-28033",
    "datePublished": "2021-03-05T08:38:21",
    "dateReserved": "2021-03-05T00:00:00",
    "dateUpdated": "2024-08-03T21:33:17.141Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-8FGG-5V78-6G76

Vulnerability from github – Published: 2021-08-25 20:52 – Updated: 2022-05-04 03:04

Summary

Deserializing an array can free uninitialized memory in byte_struct

Details

Byte_struct stack and unpack structure as raw bytes with packed or bit field layout. An issue was discovered in the byte_struct crate before 0.6.1 for Rust. There can be a drop of uninitialized memory if a certain deserialization method panics.

Severity ?

9.8 (Critical)


                  
                    CVSS:3.1/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": "byte_struct"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-28033"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-908"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-19T17:25:30Z",
    "nvd_published_at": "2021-03-05T09:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Byte_struct stack and unpack structure as raw bytes with packed or bit field layout. An issue was discovered in the byte_struct crate before 0.6.1 for Rust. There can be a drop of uninitialized memory if a certain deserialization method panics.",
  "id": "GHSA-8fgg-5v78-6g76",
  "modified": "2022-05-04T03:04:59Z",
  "published": "2021-08-25T20:52:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28033"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wwylele/byte-struct-rs/issues/1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wwylele/byte-struct-rs/commit/a535678377de12bc6bc22620c5f59bcc1369f76f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/wwylele/byte-struct-rs"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0032.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Deserializing an array can free uninitialized memory in byte_struct"
}

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-2021-0032

Vulnerability from osv_rustsec

CVE-2021-28033 (GCVE-0-2021-28033)

GHSA-8FGG-5V78-6G76

Tags

Sightings

Nomenclature