CVE-2018-1000204 (GCVE-0-2018-1000204)

Vulnerability from cvelistv5 – Published: 2018-06-26 14:00 – Updated: 2024-08-05 12:40
VLAI?
Summary
Linux Kernel version 3.18 to 4.16 incorrectly handles an SG_IO ioctl on /dev/sg0 with dxfer_direction=SG_DXFER_FROM_DEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages to the userspace. This has been fixed upstream in https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824 already. The problem has limited scope, as users don't usually have permissions to access SCSI devices. On the other hand, e.g. the Nero user manual suggests doing `chmod o+r+w /dev/sg*` to make the devices accessible. NOTE: third parties dispute the relevance of this report, noting that the requirement for an attacker to have both the CAP_SYS_ADMIN and CAP_SYS_RAWIO capabilities makes it "virtually impossible to exploit.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
https://usn.ubuntu.com/3752-2/ vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3696-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3752-3/ vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2018/06/26/3 x_refsource_MISC
https://usn.ubuntu.com/3754-1/ vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2018… mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2018:2948 vendor-advisoryx_refsource_REDHAT
https://github.com/torvalds/linux/commit/a45b599a… x_refsource_CONFIRM
https://usn.ubuntu.com/3696-2/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3752-1/ vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T12:40:46.834Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "USN-3752-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3752-2/"
          },
          {
            "name": "[debian-lts-announce] 20180714 [SECURITY] [DLA 1422-1] linux security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html"
          },
          {
            "name": "USN-3696-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3696-1/"
          },
          {
            "name": "USN-3752-3",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3752-3/"
          },
          {
            "name": "[debian-lts-announce] 20180715 [SECURITY] [DLA 1422-2] linux security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2018/06/26/3"
          },
          {
            "name": "USN-3754-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3754-1/"
          },
          {
            "name": "[debian-lts-announce] 20180718 [SECURITY] [DLA 1423-1] linux-4.9 new package",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html"
          },
          {
            "name": "RHSA-2018:2948",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:2948"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824"
          },
          {
            "name": "USN-3696-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3696-2/"
          },
          {
            "name": "USN-3752-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3752-1/"
          },
          {
            "name": "openSUSE-SU-2019:1407",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "dateAssigned": "2018-06-08T00:00:00",
      "datePublic": "2018-06-26T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "Linux Kernel version 3.18 to 4.16 incorrectly handles an SG_IO ioctl on /dev/sg0 with dxfer_direction=SG_DXFER_FROM_DEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages to the userspace. This has been fixed upstream in https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824 already. The problem has limited scope, as users don\u0027t usually have permissions to access SCSI devices. On the other hand, e.g. the Nero user manual suggests doing `chmod o+r+w /dev/sg*` to make the devices accessible. NOTE: third parties dispute the relevance of this report, noting that the requirement for an attacker to have both the CAP_SYS_ADMIN and CAP_SYS_RAWIO capabilities makes it \"virtually impossible to exploit."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-05-20T14:06:09",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "USN-3752-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3752-2/"
        },
        {
          "name": "[debian-lts-announce] 20180714 [SECURITY] [DLA 1422-1] linux security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html"
        },
        {
          "name": "USN-3696-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3696-1/"
        },
        {
          "name": "USN-3752-3",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3752-3/"
        },
        {
          "name": "[debian-lts-announce] 20180715 [SECURITY] [DLA 1422-2] linux security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2018/06/26/3"
        },
        {
          "name": "USN-3754-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3754-1/"
        },
        {
          "name": "[debian-lts-announce] 20180718 [SECURITY] [DLA 1423-1] linux-4.9 new package",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html"
        },
        {
          "name": "RHSA-2018:2948",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:2948"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824"
        },
        {
          "name": "USN-3696-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3696-2/"
        },
        {
          "name": "USN-3752-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3752-1/"
        },
        {
          "name": "openSUSE-SU-2019:1407",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html"
        }
      ],
      "tags": [
        "disputed"
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "DATE_ASSIGNED": "2018-06-08",
          "ID": "CVE-2018-1000204",
          "REQUESTER": "glider@google.com",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "** DISPUTED ** Linux Kernel version 3.18 to 4.16 incorrectly handles an SG_IO ioctl on /dev/sg0 with dxfer_direction=SG_DXFER_FROM_DEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages to the userspace. This has been fixed upstream in https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824 already. The problem has limited scope, as users don\u0027t usually have permissions to access SCSI devices. On the other hand, e.g. the Nero user manual suggests doing `chmod o+r+w /dev/sg*` to make the devices accessible. NOTE: third parties dispute the relevance of this report, noting that the requirement for an attacker to have both the CAP_SYS_ADMIN and CAP_SYS_RAWIO capabilities makes it \"virtually impossible to exploit.\""
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "USN-3752-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3752-2/"
            },
            {
              "name": "[debian-lts-announce] 20180714 [SECURITY] [DLA 1422-1] linux security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html"
            },
            {
              "name": "USN-3696-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3696-1/"
            },
            {
              "name": "USN-3752-3",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3752-3/"
            },
            {
              "name": "[debian-lts-announce] 20180715 [SECURITY] [DLA 1422-2] linux security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html"
            },
            {
              "name": "http://www.openwall.com/lists/oss-security/2018/06/26/3",
              "refsource": "MISC",
              "url": "http://www.openwall.com/lists/oss-security/2018/06/26/3"
            },
            {
              "name": "USN-3754-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3754-1/"
            },
            {
              "name": "[debian-lts-announce] 20180718 [SECURITY] [DLA 1423-1] linux-4.9 new package",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html"
            },
            {
              "name": "RHSA-2018:2948",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2018:2948"
            },
            {
              "name": "https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824",
              "refsource": "CONFIRM",
              "url": "https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824"
            },
            {
              "name": "USN-3696-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3696-2/"
            },
            {
              "name": "USN-3752-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3752-1/"
            },
            {
              "name": "openSUSE-SU-2019:1407",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-1000204",
    "datePublished": "2018-06-26T14:00:00",
    "dateReserved": "2018-06-08T00:00:00",
    "dateUpdated": "2024-08-05T12:40:46.834Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"3.18\", \"versionEndIncluding\": \"4.16\", \"matchCriteriaId\": \"1C9DBE4B-803A-403C-87F1-C05E73CBC60F\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*\", \"matchCriteriaId\": \"B5A6F2F3-4894-4392-8296-3B8DD2679084\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*\", \"matchCriteriaId\": \"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*\", \"matchCriteriaId\": \"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43\"}]}]}]",
      "cveTags": "[{\"sourceIdentifier\": \"cve@mitre.org\", \"tags\": [\"disputed\"]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"Linux Kernel version 3.18 to 4.16 incorrectly handles an SG_IO ioctl on /dev/sg0 with dxfer_direction=SG_DXFER_FROM_DEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages to the userspace. This has been fixed upstream in https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824 already. The problem has limited scope, as users don\u0027t usually have permissions to access SCSI devices. On the other hand, e.g. the Nero user manual suggests doing `chmod o+r+w /dev/sg*` to make the devices accessible. NOTE: third parties dispute the relevance of this report, noting that the requirement for an attacker to have both the CAP_SYS_ADMIN and CAP_SYS_RAWIO capabilities makes it \\\"virtually impossible to exploit.\"}, {\"lang\": \"es\", \"value\": \"** EN DISPUTA ** El kernel de Linux desde la versi\\u00f3n 3.18 hasta la 4.16 manipula incorrectamente una llamada IOCTL SG_IO en /dev/sg0 con dxfer_direction=SG_DXFER_FROM_DEV y un cmdp de 6 bytes vac\\u00edo. Esto puede permitir que se copien hasta 1000 p\\u00e1ginas de la memoria din\\u00e1mica (heap) del kernel al espacio de usuario. Esto ya se ha resuelto en versiones upstream en https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824. El problema tiene un alcance limitado, ya que los usuarios no suelen tener permisos para acceder a los dispositivos SCSI. Por otro lado, por ejemplo, el manual de usuario de Nero sugiere hacer \\\"chmod o+r+w /dev/sg*\\\" para que los dispositivos sean accesibles. NOTA: terceros cuestionan la relevancia de este informe, se\\u00f1alando que el requisito de que un atacante tenga las capacidades CAP_SYS_ADMIN y CAP_SYS_RAWIO lo hace \\\"virtualmente imposible de explotar\\\".\"}]",
      "id": "CVE-2018-1000204",
      "lastModified": "2024-11-21T03:39:55.860",
      "metrics": "{\"cvssMetricV30\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 1.6, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:M/Au:S/C:C/I:N/A:N\", \"baseScore\": 6.3, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"SINGLE\", \"confidentialityImpact\": \"COMPLETE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 6.8, \"impactScore\": 6.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2018-06-26T14:29:02.160",
      "references": "[{\"url\": \"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2018/06/26/3\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2018:2948\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824\", \"source\": \"cve@mitre.org\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3696-1/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3696-2/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3752-1/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3752-2/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3752-3/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3754-1/\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2018/06/26/3\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2018:2948\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3696-1/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3696-2/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3752-1/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3752-2/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3752-3/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://usn.ubuntu.com/3754-1/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2018-1000204\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2018-06-26T14:29:02.160\",\"lastModified\":\"2024-11-21T03:39:55.860\",\"vulnStatus\":\"Modified\",\"cveTags\":[{\"sourceIdentifier\":\"cve@mitre.org\",\"tags\":[\"disputed\"]}],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Linux Kernel version 3.18 to 4.16 incorrectly handles an SG_IO ioctl on /dev/sg0 with dxfer_direction=SG_DXFER_FROM_DEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages to the userspace. This has been fixed upstream in https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824 already. The problem has limited scope, as users don\u0027t usually have permissions to access SCSI devices. On the other hand, e.g. the Nero user manual suggests doing `chmod o+r+w /dev/sg*` to make the devices accessible. NOTE: third parties dispute the relevance of this report, noting that the requirement for an attacker to have both the CAP_SYS_ADMIN and CAP_SYS_RAWIO capabilities makes it \\\"virtually impossible to exploit.\"},{\"lang\":\"es\",\"value\":\"** EN DISPUTA ** El kernel de Linux desde la versi\u00f3n 3.18 hasta la 4.16 manipula incorrectamente una llamada IOCTL SG_IO en /dev/sg0 con dxfer_direction=SG_DXFER_FROM_DEV y un cmdp de 6 bytes vac\u00edo. Esto puede permitir que se copien hasta 1000 p\u00e1ginas de la memoria din\u00e1mica (heap) del kernel al espacio de usuario. Esto ya se ha resuelto en versiones upstream en https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824. El problema tiene un alcance limitado, ya que los usuarios no suelen tener permisos para acceder a los dispositivos SCSI. Por otro lado, por ejemplo, el manual de usuario de Nero sugiere hacer \\\"chmod o+r+w /dev/sg*\\\" para que los dispositivos sean accesibles. NOTA: terceros cuestionan la relevancia de este informe, se\u00f1alando que el requisito de que un atacante tenga las capacidades CAP_SYS_ADMIN y CAP_SYS_RAWIO lo hace \\\"virtualmente imposible de explotar\\\".\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.6,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:S/C:C/I:N/A:N\",\"baseScore\":6.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":6.8,\"impactScore\":6.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.18\",\"versionEndIncluding\":\"4.16\",\"matchCriteriaId\":\"1C9DBE4B-803A-403C-87F1-C05E73CBC60F\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"B5A6F2F3-4894-4392-8296-3B8DD2679084\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2018/06/26/3\",\"source\":\"cve@mitre.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:2948\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824\",\"source\":\"cve@mitre.org\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3696-1/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3696-2/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3752-1/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3752-2/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3752-3/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3754-1/\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2018/06/26/3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2018:2948\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3696-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3696-2/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3752-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3752-2/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3752-3/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://usn.ubuntu.com/3754-1/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.