{
  "schema_version": "1.4.0",
  "id": "GHSA-pjrv-5vw3-5frj",
  "modified": "2025-04-02T21:30:42Z",
  "published": "2022-12-19T18:30:25Z",
  "aliases": [
    "CVE-2021-33640"
  ],
  "details": "After tar_close(), libtar.c releases the memory pointed to by pointer t. After tar_close() is called in the list() function, it continues to use pointer t: free_longlink_longname(t->th_buf) . As a result, the released memory is used (use-after-free).",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-33640"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S4PJRCJLEAWN2EKXGLSOBTL7O57V7NC"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WX5YE66CT7Y5C2HTHXSFDKQWYWYWJ2T"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4S4PJRCJLEAWN2EKXGLSOBTL7O57V7NC"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7WX5YE66CT7Y5C2HTHXSFDKQWYWYWJ2T"
    },
    {
      "type": "WEB",
      "url": "https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2021-33640&packageName=libtar"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "severity": "CRITICAL",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-12-19T16:15:00Z"
  }
}