gsd-2018-6556
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
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't 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.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2018-6556",
    "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.",
    "id": "GSD-2018-6556",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-6556.html",
      "https://ubuntu.com/security/CVE-2018-6556",
      "https://security.archlinux.org/CVE-2018-6556"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-6556"
      ],
      "details": "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.",
      "id": "GSD-2018-6556",
      "modified": "2023-12-13T01:22:35.787394Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@ubuntu.com",
        "DATE_PUBLIC": "2018-08-06T16:00:00.000Z",
        "ID": "CVE-2018-6556",
        "STATE": "PUBLIC",
        "TITLE": "The lxc-user-nic component of LXC allows unprivileged users to open arbitrary files"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "LXC",
                    "version": {
                      "version_data": [
                        {
                          "affected": "\u003e=",
                          "version_name": "2.0",
                          "version_value": "2.0.9"
                        },
                        {
                          "affected": "\u003e=",
                          "version_name": "3.0",
                          "version_value": "3.0.0"
                        },
                        {
                          "affected": "\u003c",
                          "version_name": "3.0",
                          "version_value": "3.0.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "credit": [
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          "lang": "eng",
          "value": "Matthias Gerstner from SUSE"
        }
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Incorrect access control"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "USN-3730-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/usn/usn-3730-1"
          },
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            "refsource": "CONFIRM",
            "url": "https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591"
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          {
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            "url": "https://security.gentoo.org/glsa/201808-02"
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          },
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          },
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            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html"
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        ]
      },
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        "defect": [
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        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
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            "children": [],
            "cpe_match": [
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            ],
            "operator": "OR"
          },
          {
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            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.0.2",
                "versionStartIncluding": "3.0.0",
                "vulnerable": true
              },
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            ],
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          },
          {
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            "cpe_match": [
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                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:a:suse:openstack_cloud:6:*:*:*:*:*:*:*",
                "cpe_name": [],
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      },
      "cve": {
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          "ASSIGNER": "security@ubuntu.com",
          "ID": "CVE-2018-6556"
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        "description": {
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              "value": "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-417"
                }
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "USN-3730-1",
              "refsource": "UBUNTU",
              "tags": [
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              "url": "https://usn.ubuntu.com/usn/usn-3730-1"
            },
            {
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            },
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            },
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              "name": "GLSA-201808-02",
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              "tags": [],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00073.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.1,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2019-05-31T21:29Z",
      "publishedDate": "2018-08-10T15:29Z"
    }
  }
}


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