ubuntu-cve-2020-35911
Vulnerability from osv_ubuntu
Published
2020-12-31 09:15
Modified
2026-05-20 14:52
Summary
Details

An issue was discovered in the lock_api crate before 0.4.2 for Rust. A data race can occur because of MappedRwLockReadGuard unsoundness.

Severity
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-lock-api+owning-ref-dev",
            "binary_version": "0.3.3-1"
          },
          {
            "binary_name": "librust-lock-api+serde-dev",
            "binary_version": "0.3.3-1"
          },
          {
            "binary_name": "librust-lock-api-dev",
            "binary_version": "0.3.3-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "rust-lock-api",
        "purl": "pkg:deb/ubuntu/rust-lock-api@0.3.3-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.5-1",
        "0.3.1-1",
        "0.3.2-1",
        "0.3.3-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-lock-api+owning-ref-dev",
            "binary_version": "0.4.5-1"
          },
          {
            "binary_name": "librust-lock-api+serde-dev",
            "binary_version": "0.4.5-1"
          },
          {
            "binary_name": "librust-lock-api-dev",
            "binary_version": "0.4.5-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "rust-lock-api",
        "purl": "pkg:deb/ubuntu/rust-lock-api@0.4.5-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.3.4-1",
        "0.4.5-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-lock-api-dev",
            "binary_version": "0.4.11-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "rust-lock-api",
        "purl": "pkg:deb/ubuntu/rust-lock-api@0.4.11-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.9-1",
        "0.4.11-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-lock-api-dev",
            "binary_version": "0.4.12-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "rust-lock-api",
        "purl": "pkg:deb/ubuntu/rust-lock-api@0.4.12-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.12-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-lock-api-dev",
            "binary_version": "0.4.14-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "rust-lock-api",
        "purl": "pkg:deb/ubuntu/rust-lock-api@0.4.14-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.12-1",
        "0.4.13-1",
        "0.4.14-1"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in the lock_api crate before 0.4.2 for Rust. A data race can occur because of MappedRwLockReadGuard unsoundness.",
  "id": "UBUNTU-CVE-2020-35911",
  "modified": "2026-05-20T14:52:39Z",
  "published": "2020-12-31T09:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-35911"
    },
    {
      "type": "REPORT",
      "url": "https://rustsec.org/advisories/RUSTSEC-2020-0070.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Amanieu/parking_lot/pull/262"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-35911"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-35911"
  ]
}



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