ghsa-cw7x-3mv7-w6xm
Vulnerability from github
Published
2023-05-29 21:30
Modified
2024-04-04 04:22
Details

Libarchive through 3.6.2 can cause directories to have world-writable permissions. The umask() call inside archive_write_disk_posix.c changes the umask of the whole process for a very short period of time; a race condition with another thread can lead to a permanent umask 0 setting. Such a race condition could lead to implicit directory creation with permissions 0777 (without the sticky bit), which means that any low-privileged local user can delete and rename files inside those directories.

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2023-30571"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-05-29T20:15:09Z",
    "severity": "MODERATE"
  },
  "details": "Libarchive through 3.6.2 can cause directories to have world-writable permissions. The umask() call inside archive_write_disk_posix.c changes the umask of the whole process for a very short period of time; a race condition with another thread can lead to a permanent umask 0 setting. Such a race condition could lead to implicit directory creation with permissions 0777 (without the sticky bit), which means that any low-privileged local user can delete and rename files inside those directories.",
  "id": "GHSA-cw7x-3mv7-w6xm",
  "modified": "2024-04-04T04:22:43Z",
  "published": "2023-05-29T21:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-30571"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libarchive/libarchive/issues/1876"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/libarchive-announce"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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