ubuntu-cve-2021-38511
Vulnerability from osv_ubuntu
Published
2021-08-10 23:15
Modified
2026-05-20 14:53
Summary
Details

An issue was discovered in the tar crate before 0.4.36 for Rust. When symlinks are present in a TAR archive, extraction can create arbitrary directories via .. traversal.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-tar+default-dev",
            "binary_version": "0.4.26-1ubuntu0.1"
          },
          {
            "binary_name": "librust-tar-dev",
            "binary_version": "0.4.26-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "rust-tar",
        "purl": "pkg:deb/ubuntu/rust-tar@0.4.26-1ubuntu0.1?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.26-1",
        "0.4.26-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-tar+default-dev",
            "binary_version": "0.4.37-3ubuntu0.1+esm1"
          },
          {
            "binary_name": "librust-tar-dev",
            "binary_version": "0.4.37-3ubuntu0.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "rust-tar",
        "purl": "pkg:deb/ubuntu/rust-tar@0.4.37-3ubuntu0.1+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.26-1",
        "0.4.37-1",
        "0.4.37-3",
        "0.4.37-3ubuntu0.1~esm1",
        "0.4.37-3ubuntu0.1",
        "0.4.37-3ubuntu0.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-tar-dev",
            "binary_version": "0.4.40-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "rust-tar",
        "purl": "pkg:deb/ubuntu/rust-tar@0.4.40-1ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.38-2",
        "0.4.40-1",
        "0.4.40-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-tar-dev",
            "binary_version": "0.4.43-4ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "rust-tar",
        "purl": "pkg:deb/ubuntu/rust-tar@0.4.43-4ubuntu0.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.43-4",
        "0.4.43-4ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-tar-dev",
            "binary_version": "0.4.45-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "rust-tar",
        "purl": "pkg:deb/ubuntu/rust-tar@0.4.45-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.43-4",
        "0.4.44-1",
        "0.4.45-1"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in the tar crate before 0.4.36 for Rust. When symlinks are present in a TAR archive, extraction can create arbitrary directories via .. traversal.",
  "id": "UBUNTU-CVE-2021-38511",
  "modified": "2026-05-20T14:53:29Z",
  "published": "2021-08-10T23:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-38511"
    },
    {
      "type": "REPORT",
      "url": "https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tar/RUSTSEC-2021-0080.md"
    },
    {
      "type": "REPORT",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0080.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-38511"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-38511"
  ]
}



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