Vulnerability-Lookup

rustsec-2021-0008

Vulnerability from osv_rustsec

Published

2021-01-02 12:00

Modified

2023-06-13 13:10

Summary

reading on uninitialized buffer can cause UB (`impl<R> BufRead for GreedyAccessReader<R>`)

Details

Affected versions of this crate creates an uninitialized buffer and passes it to user-provided Read implementation.

This is unsound, because it allows safe Rust code to exhibit an undefined behavior (read from uninitialized memory).

The flaw was corrected in version 0.1.1 by zero-initializing a newly allocated buffer before handing it to a user-provided Read implementation.

JSON

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{
  "affected": [
    {
      "database_specific": {
        "categories": [
          "memory-exposure"
        ],
        "cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
        "informational": null
      },
      "ecosystem_specific": {
        "affected_functions": null,
        "affects": {
          "arch": [],
          "functions": [],
          "os": []
        }
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "bra",
        "purl": "pkg:cargo/bra"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0-0"
            },
            {
              "fixed": "0.1.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "versions": []
    }
  ],
  "aliases": [
    "CVE-2021-25905",
    "GHSA-j8qq-58cr-8cc7"
  ],
  "database_specific": {
    "license": "CC0-1.0"
  },
  "details": "Affected versions of this crate creates an uninitialized buffer and passes it to user-provided `Read` implementation.\n\nThis is unsound, because it allows safe Rust code to exhibit an undefined behavior (read from uninitialized memory).\n\nThe flaw was corrected in version 0.1.1 by zero-initializing a newly allocated buffer\nbefore handing it to a user-provided `Read` implementation.",
  "id": "RUSTSEC-2021-0008",
  "modified": "2023-06-13T13:10:24Z",
  "published": "2021-01-02T12:00:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://crates.io/crates/bra"
    },
    {
      "type": "ADVISORY",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0008.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Enet4/bra-rs/issues/1"
    }
  ],
  "related": [],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "reading on uninitialized buffer can cause UB (`impl\u003cR\u003e BufRead for GreedyAccessReader\u003cR\u003e`)"
}

CVE-2021-25905 (GCVE-0-2021-25905)

Vulnerability from cvelistv5 – Published: 2021-01-22 09:02 – Updated: 2024-08-03 20:11

Summary

An issue was discovered in the bra crate before 0.1.1 for Rust. It lacks soundness because it can read uninitialized memory.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://rustsec.org/advisories/RUSTSEC-2021-0008.html

x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:11:28.439Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://rustsec.org/advisories/RUSTSEC-2021-0008.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 bra crate before 0.1.1 for Rust. It lacks soundness because it can read uninitialized memory."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-22T09:02:39",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://rustsec.org/advisories/RUSTSEC-2021-0008.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-25905",
          "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 bra crate before 0.1.1 for Rust. It lacks soundness because it can read uninitialized memory."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://rustsec.org/advisories/RUSTSEC-2021-0008.html",
              "refsource": "MISC",
              "url": "https://rustsec.org/advisories/RUSTSEC-2021-0008.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-25905",
    "datePublished": "2021-01-22T09:02:39",
    "dateReserved": "2021-01-22T00:00:00",
    "dateUpdated": "2024-08-03T20:11:28.439Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-J8QQ-58CR-8CC7

Vulnerability from github – Published: 2021-08-25 20:52 – Updated: 2022-05-05 00:44

Summary

Out of bounds read in bra

Details

Buffered Random Access (BRA) provides easy random memory access to a sequential source of data in Rust. This is achieved by greedily retaining all memory read from a given source. Buffered Random Access (BRA) provides easy random memory access to a sequential source of data in Rust. An issue was discovered in the bra crate before 0.1.1 for Rust. It lacks soundness because it can read uninitialized memory.

Severity ?

9.1 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "bra"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-25905"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125",
      "CWE-908"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-19T18:46:05Z",
    "nvd_published_at": "2021-01-26T18:16:00Z",
    "severity": "CRITICAL"
  },
  "details": "Buffered Random Access (BRA) provides easy random memory access to a sequential source of data in Rust. This is achieved by greedily retaining all memory read from a given source. Buffered Random Access (BRA) provides easy random memory access to a sequential source of data in Rust. An issue was discovered in the bra crate before 0.1.1 for Rust. It lacks soundness because it can read uninitialized memory.",
  "id": "GHSA-j8qq-58cr-8cc7",
  "modified": "2022-05-05T00:44:22Z",
  "published": "2021-08-25T20:52:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25905"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Enet4/bra-rs/issues/1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Enet4/bra-rs/commit/aabf5562f8c6374ab30f615b28e0cff9b5c79e5f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Enet4/bra-rs"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0008.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Out of bounds read in bra"
}

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-2021-0008

Vulnerability from osv_rustsec

CVE-2021-25905 (GCVE-0-2021-25905)

GHSA-J8QQ-58CR-8CC7

Tags

Sightings

Nomenclature