ubuntu-cve-2019-5736
Vulnerability from osv_ubuntu
Published
2019-02-11 19:29
Modified
2025-09-08 16:45
Summary
Details

runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.

Severity
8.6 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
8.6 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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": "docker.io",
            "binary_version": "18.06.1-0ubuntu1.2~16.04.1"
          },
          {
            "binary_name": "golang-docker-dev",
            "binary_version": "18.06.1-0ubuntu1.2~16.04.1"
          },
          {
            "binary_name": "golang-github-docker-docker-dev",
            "binary_version": "18.06.1-0ubuntu1.2~16.04.1"
          },
          {
            "binary_name": "vim-syntax-docker",
            "binary_version": "18.06.1-0ubuntu1.2~16.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "docker.io",
        "purl": "pkg:deb/ubuntu/docker.io@18.06.1-0ubuntu1.2~16.04.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "18.06.1-0ubuntu1.2~16.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.2~dfsg1-1ubuntu4",
        "1.10.2-0ubuntu3",
        "1.10.2-0ubuntu4",
        "1.10.3-0ubuntu1",
        "1.10.3-0ubuntu4",
        "1.10.3-0ubuntu5",
        "1.10.3-0ubuntu6",
        "1.11.2-0ubuntu5~16.04",
        "1.12.1-0ubuntu13~16.04.1",
        "1.12.3-0ubuntu4~16.04.2",
        "1.12.6-0ubuntu1~16.04.1",
        "1.13.1-0ubuntu1~16.04.2",
        "17.03.2-0ubuntu2~16.04.1",
        "18.06.1-0ubuntu1~16.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "golang-github-opencontainers-runc-dev",
            "binary_version": "1.0.0~rc2+docker1.13.1-0ubuntu1~16.04.1"
          },
          {
            "binary_name": "runc",
            "binary_version": "1.0.0~rc2+docker1.13.1-0ubuntu1~16.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "runc",
        "purl": "pkg:deb/ubuntu/runc@1.0.0~rc2+docker1.13.1-0ubuntu1~16.04.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.0~rc2+docker1.13.1-0ubuntu1~16.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.8+dfsg-2",
        "0.1.1-0ubuntu5~16.04",
        "1.0.0~rc1-0ubuntu1~16.04",
        "1.0.0~rc1-0ubuntu2~16.04.1",
        "1.0.0~rc1-0ubuntu2~16.04.1.1",
        "1.0.0~rc2-0ubuntu2~16.04.1",
        "1.0.0~rc2+docker1.12.6-0ubuntu1~16.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "docker.io",
            "binary_version": "18.06.1-0ubuntu1.2~18.04.1"
          },
          {
            "binary_name": "golang-docker-dev",
            "binary_version": "18.06.1-0ubuntu1.2~18.04.1"
          },
          {
            "binary_name": "golang-github-docker-docker-dev",
            "binary_version": "18.06.1-0ubuntu1.2~18.04.1"
          },
          {
            "binary_name": "vim-syntax-docker",
            "binary_version": "18.06.1-0ubuntu1.2~18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "docker.io",
        "purl": "pkg:deb/ubuntu/docker.io@18.06.1-0ubuntu1.2~18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "18.06.1-0ubuntu1.2~18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.13.1-0ubuntu6",
        "17.03.2-0ubuntu1",
        "17.03.2-0ubuntu3",
        "17.03.2-0ubuntu5",
        "17.12.1-0ubuntu1",
        "18.06.1-0ubuntu1~18.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "golang-github-opencontainers-runc-dev",
            "binary_version": "1.0.0~rc4+dfsg1-6ubuntu0.18.04.1"
          },
          {
            "binary_name": "runc",
            "binary_version": "1.0.0~rc4+dfsg1-6ubuntu0.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "runc",
        "purl": "pkg:deb/ubuntu/runc@1.0.0~rc4+dfsg1-6ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.0~rc4+dfsg1-6ubuntu0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0~rc2+docker1.13.1-0ubuntu1",
        "1.0.0~rc4+dfsg1-2",
        "1.0.0~rc4+dfsg1-6"
      ]
    }
  ],
  "aliases": [],
  "details": "runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.",
  "id": "UBUNTU-CVE-2019-5736",
  "modified": "2025-09-08T16:45:15Z",
  "published": "2019-02-11T19:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-5736"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2019/02/11/2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-5736"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4048-1"
    }
  ],
  "related": [
    "USN-4048-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-5736"
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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