Security advisory

{
  "id": "23e62065c53b8c17a2b4e195495a7410fcd7fac68b4a9b26bb7693790cded8fa",
  "url": "https://osv.dev/vulnerability/CVE-2018-6764",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-6764",
    "summary": "util/virlog.c in libvirt does not properly determine the hostname on LXC container startup, which allows local guest OS users to bypass an intended container protection mechanism and execute arbitrary commands via a crafted NSS module.",
    "evidence": "osv:CVE-2018-6764",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-6764",
      "aliases": [
        "CVE-2018-6764"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/libvirt/libvirt",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5f6025945bf0f98debcd4ad8cf064e9cadca1cc9"
                },
                {
                  "last_affected": "501563469e67ea54be4ec1b3b84d4f0405e90ea4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "8.0"
                      },
                      {
                        "last_affected": "8.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "9.0"
                      },
                      {
                        "last_affected": "9.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0"
                      },
                      {
                        "last_affected": "4.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.0"
                      },
                      {
                        "last_affected": "7.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.0"
                      },
                      {
                        "last_affected": "7.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.0"
                      },
                      {
                        "last_affected": "7.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.0",
            "7.0",
            "8.0",
            "9.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-6764.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:26.940023738Z",
      "provider": "osv",
      "references": [
        "https://access.redhat.com/errata/RHSA-2018:3113",
        "https://www.debian.org/security/2018/dsa-4137",
        "https://www.redhat.com/archives/libvir-list/2018-February/msg00239.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.04"
                  },
                  {
                    "last_affected": "14.04"
                  },
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  },
                  {
                    "introduced": "17.10"
                  },
                  {
                    "last_affected": "17.10"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-6764",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431715,
  "published_at": "2018-02-23T17:29:00.473+00:00"
}