ghsa-325x-3w5r-2xgh
Vulnerability from github
Published
2022-05-17 03:50
Modified
2022-05-17 03:50
Severity ?
6.1 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Details

fs/namespace.c in the Linux kernel before 4.0.2 processes MNT_DETACH umount2 system calls without verifying that the MNT_LOCKED flag is unset, which allows local users to bypass intended access restrictions and navigate to filesystem locations beneath a mount by calling umount2 within a user namespace.

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{
  "affected": [],
  "aliases": [
    "CVE-2014-9717"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-05-02T10:59:00Z",
    "severity": "MODERATE"
  },
  "details": "fs/namespace.c in the Linux kernel before 4.0.2 processes MNT_DETACH umount2 system calls without verifying that the MNT_LOCKED flag is unset, which allows local users to bypass intended access restrictions and navigate to filesystem locations beneath a mount by calling umount2 within a user namespace.",
  "id": "GHSA-325x-3w5r-2xgh",
  "modified": "2022-05-17T03:50:32Z",
  "published": "2022-05-17T03:50:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-9717"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/ce07d891a0891d3c0d0c2d73d577490486b809e1"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1226751"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/forum/message/raw?msg=linux.kernel/HnegnbXk0Vs/RClojwJzAFEJ"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce07d891a0891d3c0d0c2d73d577490486b809e1"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00056.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html"
    },
    {
      "type": "WEB",
      "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.2"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2015/04/17/4"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/74226"
    },
    {
      "type": "WEB",
      "url": "http://www.spinics.net/lists/linux-containers/msg30786.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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