{
  "cveId": "CVE-2018-6556",
  "url": "https://patchblox.com/security/cve/CVE-2018-6556",
  "summary": "CVE-2018-6556 is fixed in 6 products on 1 platform, first by liblxc-common 3.0.1-0ubuntu1~18.04.2, released August 6, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "liblxc1: lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path",
  "description": "lxc-user-nic when asked to delete a network interface will unconditionally open a user provided path. This code path may be used by an unprivileged user to check for the existence of a path which they wouldn\u0027t otherwise be able to reach. It may also be used to trigger side effects by causing a (read-only) open of special kernel files (ptmx, proc, sys). Affected releases are LXC: 2.0 versions above and including 2.0.9; 3.0 versions above and including 3.0.0, prior to 3.0.2.",
  "published": "2018-08-06T09:00:00Z",
  "severity": "Medium",
  "epss": 0.00347,
  "epssPercentile": 0.28396,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "liblxc-common",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.0.1-0ubuntu1~18.04.2",
      "fix": "liblxc-common 3.0.1-0ubuntu1~18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-liblxc-common-3.0.1-0ubuntu1-18.04.2",
      "released": "2018-08-06T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "liblxc1",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.0.1-0ubuntu1~18.04.2",
      "fix": "liblxc1 3.0.1-0ubuntu1~18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-liblxc1-3.0.1-0ubuntu1-18.04.2",
      "released": "2018-08-06T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libpam-cgfs",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.0.1-0ubuntu1~18.04.2",
      "fix": "libpam-cgfs 3.0.1-0ubuntu1~18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libpam-cgfs-3.0.1-0ubuntu1-18.04.2",
      "released": "2018-08-06T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lxc",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.0.1-0ubuntu1~18.04.2",
      "fix": "lxc 3.0.1-0ubuntu1~18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-lxc-3.0.1-0ubuntu1-18.04.2",
      "released": "2018-08-06T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lxc-utils",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.0.1-0ubuntu1~18.04.2",
      "fix": "lxc-utils 3.0.1-0ubuntu1~18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-lxc-utils-3.0.1-0ubuntu1-18.04.2",
      "released": "2018-08-06T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "lxc1",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.0.1-0ubuntu1~18.04.2",
      "fix": "lxc1 3.0.1-0ubuntu1~18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-lxc1-3.0.1-0ubuntu1-18.04.2",
      "released": "2018-08-06T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T12:40:37Z"
}