ubuntu-cve-2016-8649
Vulnerability from osv_ubuntu
Published
2016-11-23 16:00
Modified
2026-04-22 07:38
Summary
Details

lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an inherited file descriptor, of the host's /proc, to access the rest of the host's filesystem via the openat() family of syscalls.

Severity
9.1 (Critical)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "liblxc1",
            "binary_version": "1.0.8-0ubuntu0.4"
          },
          {
            "binary_name": "lxc",
            "binary_version": "1.0.8-0ubuntu0.4"
          },
          {
            "binary_name": "lxc-templates",
            "binary_version": "1.0.8-0ubuntu0.4"
          },
          {
            "binary_name": "lxc-tests",
            "binary_version": "1.0.8-0ubuntu0.4"
          },
          {
            "binary_name": "python3-lxc",
            "binary_version": "1.0.8-0ubuntu0.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "lxc",
        "purl": "pkg:deb/ubuntu/lxc@1.0.8-0ubuntu0.4?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.8-0ubuntu0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0~alpha1-0ubuntu11",
        "1.0.0~alpha2-0ubuntu1",
        "1.0.0~alpha2-0ubuntu3",
        "1.0.0~alpha2-0ubuntu4",
        "1.0.0~alpha2-0ubuntu5",
        "1.0.0~alpha2-0ubuntu6",
        "1.0.0~alpha3-0ubuntu1",
        "1.0.0~alpha3-0ubuntu2",
        "1.0.0~alpha3-0ubuntu3",
        "1.0.0~alpha3-0ubuntu4",
        "1.0.0~alpha3-0ubuntu5",
        "1.0.0~alpha3-0ubuntu6",
        "1.0.0~alpha3-0ubuntu7",
        "1.0.0~alpha3-0ubuntu8",
        "1.0.0~beta1-0ubuntu1",
        "1.0.0~beta1-0ubuntu2",
        "1.0.0~beta1-0ubuntu3",
        "1.0.0~beta2-0ubuntu1",
        "1.0.0~beta2-0ubuntu2",
        "1.0.0~beta3-0ubuntu1",
        "1.0.0~beta4-0ubuntu1",
        "1.0.0~beta4-0ubuntu2",
        "1.0.0~rc1-0ubuntu2",
        "1.0.0~rc3-0ubuntu1",
        "1.0.0~rc4-0ubuntu1",
        "1.0.0-0ubuntu1",
        "1.0.0-0ubuntu2",
        "1.0.0-0ubuntu3",
        "1.0.0-0ubuntu4",
        "1.0.1-0ubuntu1",
        "1.0.2-0ubuntu1",
        "1.0.2-0ubuntu2",
        "1.0.3-0ubuntu1",
        "1.0.3-0ubuntu2",
        "1.0.3-0ubuntu3",
        "1.0.4-0ubuntu0.1",
        "1.0.5-0ubuntu0.1",
        "1.0.6-0ubuntu0.1",
        "1.0.7-0ubuntu0.1",
        "1.0.7-0ubuntu0.2",
        "1.0.7-0ubuntu0.5",
        "1.0.7-0ubuntu0.6",
        "1.0.7-0ubuntu0.7",
        "1.0.7-0ubuntu0.9",
        "1.0.7-0ubuntu0.10",
        "1.0.8-0ubuntu0.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "liblxc1",
            "binary_version": "2.0.5-0ubuntu1~ubuntu16.04.3"
          },
          {
            "binary_name": "lua-lxc",
            "binary_version": "2.0.5-0ubuntu1~ubuntu16.04.3"
          },
          {
            "binary_name": "lxc",
            "binary_version": "2.0.5-0ubuntu1~ubuntu16.04.3"
          },
          {
            "binary_name": "lxc-common",
            "binary_version": "2.0.5-0ubuntu1~ubuntu16.04.3"
          },
          {
            "binary_name": "lxc-templates",
            "binary_version": "2.0.5-0ubuntu1~ubuntu16.04.3"
          },
          {
            "binary_name": "lxc-tests",
            "binary_version": "2.0.5-0ubuntu1~ubuntu16.04.3"
          },
          {
            "binary_name": "lxc1",
            "binary_version": "2.0.5-0ubuntu1~ubuntu16.04.3"
          },
          {
            "binary_name": "python3-lxc",
            "binary_version": "2.0.5-0ubuntu1~ubuntu16.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "lxc",
        "purl": "pkg:deb/ubuntu/lxc@2.0.5-0ubuntu1~ubuntu16.04.3?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.5-0ubuntu1~ubuntu16.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.4-0ubuntu1",
        "1.1.4-0ubuntu1.1",
        "1.1.4-0ubuntu3",
        "1.1.5-0ubuntu1",
        "1.1.5-0ubuntu2",
        "1.1.5-0ubuntu3",
        "1.1.5-0ubuntu4",
        "1.1.5-0ubuntu5",
        "1.1.5-0ubuntu6",
        "2.0.0~beta2-0ubuntu2",
        "2.0.0~rc1-0ubuntu1",
        "2.0.0~rc2-0ubuntu2",
        "2.0.0~rc3-0ubuntu1",
        "2.0.0~rc3-0ubuntu2",
        "2.0.0~rc3-0ubuntu3",
        "2.0.0~rc4-0ubuntu1",
        "2.0.0~rc5-0ubuntu1",
        "2.0.0~rc9-0ubuntu1",
        "2.0.0~rc10-0ubuntu1",
        "2.0.0~rc10-0ubuntu2",
        "2.0.0~rc11-0ubuntu1",
        "2.0.0~rc12-0ubuntu1",
        "2.0.0~rc13-0ubuntu2",
        "2.0.0~rc14-0ubuntu2",
        "2.0.0~rc15-0ubuntu1",
        "2.0.0-0ubuntu1",
        "2.0.0-0ubuntu2",
        "2.0.1-0ubuntu1~16.04.1",
        "2.0.3-0ubuntu1~ubuntu16.04.1",
        "2.0.4-0ubuntu1~ubuntu16.04.2",
        "2.0.5-0ubuntu1~ubuntu16.04.1",
        "2.0.5-0ubuntu1~ubuntu16.04.2"
      ]
    }
  ],
  "aliases": [],
  "details": "lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an inherited file descriptor, of the host\u0027s /proc, to access the rest of the host\u0027s filesystem via the openat() family of syscalls.",
  "id": "UBUNTU-CVE-2016-8649",
  "modified": "2026-04-22T07:38:03Z",
  "published": "2016-11-23T16:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-8649"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3136-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2016-8649"
    }
  ],
  "related": [
    "USN-3136-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2016-8649"
  ]
}



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