Vulnerability-Lookup

UBUNTU-CVE-2021-45707 (CVE-2021-45707)

Vulnerability from osv_ubuntu – Published: 2021-12-27 00:15 – Updated: 2026-10-17 09:08 – Source website

Details

An issue was discovered in the nix crate 0.16.0 and later before 0.20.2, 0.21.x before 0.21.2, and 0.22.x before 0.22.2 for Rust. unistd::getgrouplist has an out-of-bounds write if a user is in more than 16 /etc/groups groups.

Severity

9.8 (Critical)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2021-45707	REPORT
	https://rustsec.org/advisories/RUSTSEC-2021-0119.html	REPORT
	https://raw.githubusercontent.com/rustsec/advisor…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2021-45707	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-nix-dev",
            "binary_version": "0.16.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "rust-nix",
        "purl": "pkg:deb/ubuntu/rust-nix@0.16.1-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.14.1-1",
        "0.15.0-1",
        "0.15.0-2",
        "0.16.1-1"
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    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-nix-dev",
            "binary_version": "0.23.1-1"
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      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "rust-nix",
        "purl": "pkg:deb/ubuntu/rust-nix@0.23.1-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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          ],
          "type": "ECOSYSTEM"
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      ],
      "versions": [
        "0.19.0-1",
        "0.19.0-2",
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    },
    {
      "ecosystem_specific": {
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          {
            "binary_name": "librust-nix-dev",
            "binary_version": "0.27.1-1build1"
          }
        ]
      },
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        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "rust-nix",
        "purl": "pkg:deb/ubuntu/rust-nix@0.27.1-1build1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "0.27.1-1",
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      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-nix-dev",
            "binary_version": "0.29.0-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "rust-nix",
        "purl": "pkg:deb/ubuntu/rust-nix@0.29.0-2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.29.0-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-nix-dev",
            "binary_version": "0.30.1-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "rust-nix",
        "purl": "pkg:deb/ubuntu/rust-nix@0.30.1-3?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.30.1-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-nix-dev",
            "binary_version": "0.30.1-3"
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        ]
      },
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        "ecosystem": "Ubuntu:26.04:LTS",
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      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.29.0-2",
        "0.30.1-3"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in the nix crate 0.16.0 and later before 0.20.2, 0.21.x before 0.21.2, and 0.22.x before 0.22.2 for Rust. unistd::getgrouplist has an out-of-bounds write if a user is in more than 16 /etc/groups groups.",
  "id": "UBUNTU-CVE-2021-45707",
  "modified": "2026-10-17T09:08:41Z",
  "published": "2021-12-27T00:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-45707"
    },
    {
      "type": "REPORT",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0119.html"
    },
    {
      "type": "REPORT",
      "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/nix/RUSTSEC-2021-0119.md"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-45707"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-45707"
  ]
}

CVE-2021-45707 (GCVE-0-2021-45707)

Vulnerability from cvelistv5 – Published: 2021-12-26 21:48 – Updated: 2024-08-04 04:47

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2314 records in the last 180 days details

References

3 references

URL	Tags
https://rustsec.org/advisories/RUSTSEC-2021-0119.html	x_refsource_MISC
https://raw.githubusercontent.com/rustsec/advisor…	x_refsource_MISC
https://github.com/advisories/GHSA-wgrg-5h56-jg27	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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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.

Vulnerability timeline

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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.

Related by attack behaviour

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.

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