{
  "schema_version": "1.7.0",
  "id": "MGASA-2019-0068",
  "published": "2019-02-13T11:08:25Z",
  "modified": "2019-02-13T10:37:14Z",
  "summary": "Updated opencontainers-runc packages fix security vulnerability",
  "details": "Not using pivot_root(2) leaves the host /proc around in the mount namespace\nso that it is possible to mount another /proc without any other submount,\neven if /proc in the container is not fully visible. This flaw allows an\nattacker to read and modify some parts of the Linux kernel memory\n(rhbz#1663068).\n\nrunc through 1.0-rc6 allows attackers to overwrite the host runc binary\n(and consequently obtain host root access) by leveraging the ability to\nexecute a command as root within one of these types of containers: a new\ncontainer with an attacker-controlled image, or an existing container, to\nwhich the attacker previously had write access, that can be attached with\ndocker exec. This occurs because of file-descriptor mishandling, related\nto /proc/self/exe (CVE-2019-5736).\n",
  "upstream": [
    "CVE-2019-5736"
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://advisories.mageia.org/MGASA-2019-0068.html"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.mageia.org/show_bug.cgi?id=24253"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/SMFQ54VEZPJT4H2C2TBILCPDX2VMAIZ2/"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2019/02/11/2"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Mageia:6",
        "name": "opencontainers-runc",
        "purl": "pkg:rpm/mageia/opencontainers-runc?arch=source&distro=mageia-6"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.0rc5-3.2.mga6"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "section": "core"
      }
    }
  ],
  "credits": [
    {
      "name": "Mageia",
      "type": "COORDINATOR",
      "contact": [
        "https://wiki.mageia.org/en/Packages_Security_Team"
      ]
    }
  ]
}