ghsa-86g9-4xm6-2vw3
Vulnerability from github
Published
2022-05-17 03:10
Modified
2025-04-12 12:42
Details

The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a "negative groups" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c.

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{
  "affected": [],
  "aliases": [
    "CVE-2014-8989"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2014-11-30T01:59:00Z",
    "severity": "MODERATE"
  },
  "details": "The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a \"negative groups\" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c.",
  "id": "GHSA-86g9-4xm6-2vw3",
  "modified": "2025-04-12T12:42:26Z",
  "published": "2022-05-17T03:10:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-8989"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.html"
    },
    {
      "type": "WEB",
      "url": "http://thread.gmane.org/gmane.linux.man/7385"
    },
    {
      "type": "WEB",
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:058"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2014/11/20/4"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/71154"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2515-1"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2516-1"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2517-1"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2518-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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