Vulnerability-Lookup

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

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{
  "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"
}

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 mitre root

References

1 reference

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

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JSON

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{
  "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": "2021-03-05T08:38:21.000Z",
        "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",
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        "description": {
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        },
        "references": {
          "reference_data": [
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              "name": "https://rustsec.org/advisories/RUSTSEC-2021-0032.html",
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            }
          ]
        }
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-28033",
    "datePublished": "2021-03-05T08:38:21.000Z",
    "dateReserved": "2021-03-05T00:00:00.000Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

RUSTSEC-2021-0032 (CVE-2021-28033)

Vulnerability from osv_rustsec – Published: 2021-03-01 12:00 – Updated: 2023-06-13 13:10 – Source website

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.

Severity

9.8 (Critical)


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

References

URL

Type

	https://crates.io/crates/byte_struct	PACKAGE
	https://rustsec.org/advisories/RUSTSEC-2021-0032.html	ADVISORY
	https://github.com/wwylele/byte-struct-rs/issues/1	REPORT

JSON

To clipboard

{
  "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"
}

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.

Detection rules are retrieved from Rulezet.

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.

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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-8FGG-5V78-6G76

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

RUSTSEC-2021-0032 (CVE-2021-28033)

Tags

Sightings

Nomenclature

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