CVE-2018-18281 (GCVE-0-2018-18281)

Vulnerability from cvelistv5 – Published: 2018-10-30 18:00 – Updated: 2024-08-05 11:08
VLAI
Summary
Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2291 records in the last 180 days details
References
URL Tags
http://packetstormsecurity.com/files/150001/Linux… x_refsource_MISC
https://usn.ubuntu.com/3835-1/ vendor-advisoryx_refsource_UBUNTU
https://cdn.kernel.org/pub/linux/kernel/v4.x/Chan… x_refsource_CONFIRM
https://usn.ubuntu.com/3880-1/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3871-5/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3871-4/ vendor-advisoryx_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2018/10/29/5 mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3880-2/ vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3832-1/ vendor-advisoryx_refsource_UBUNTU
https://git.kernel.org/pub/scm/linux/kernel/git/t… x_refsource_CONFIRM
http://www.securityfocus.com/bid/105761 vdb-entryx_refsource_BID
https://usn.ubuntu.com/3871-1/ vendor-advisoryx_refsource_UBUNTU
https://cdn.kernel.org/pub/linux/kernel/v4.x/Chan… x_refsource_CONFIRM
http://www.securityfocus.com/bid/106503 vdb-entryx_refsource_BID
https://usn.ubuntu.com/3871-3/ vendor-advisoryx_refsource_UBUNTU
https://bugs.chromium.org/p/project-zero/issues/d… x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://cdn.kernel.org/pub/linux/kernel/v4.x/Chan… x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2019:0831 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2043 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2029 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0036 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0100 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0103 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0179 vendor-advisoryx_refsource_REDHAT
Date Public
2018-10-29 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T11:08:21.376Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html"
          },
          {
            "name": "USN-3835-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3835-1/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16"
          },
          {
            "name": "USN-3880-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3880-1/"
          },
          {
            "name": "USN-3871-5",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3871-5/"
          },
          {
            "name": "USN-3871-4",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3871-4/"
          },
          {
            "name": "[oss-security] 20181029 Linux kernel: TLB flush happens too late on mremap (CVE-2018-18281; fixed in 4.9.135, 4.14.78, 4.18.16, 4.19)",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2018/10/29/5"
          },
          {
            "name": "USN-3880-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3880-2/"
          },
          {
            "name": "USN-3832-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3832-1/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821"
          },
          {
            "name": "105761",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/105761"
          },
          {
            "name": "USN-3871-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3871-1/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78"
          },
          {
            "name": "106503",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/106503"
          },
          {
            "name": "USN-3871-3",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3871-3/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1695"
          },
          {
            "name": "[debian-lts-announce] 20190315 [SECURITY] [DLA 1715-1] linux-4.9 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135"
          },
          {
            "name": "[debian-lts-announce] 20190327 [SECURITY] [DLA 1731-1] linux security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
          },
          {
            "name": "[debian-lts-announce] 20190401 [SECURITY] [DLA 1731-2] linux regression update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html"
          },
          {
            "name": "RHSA-2019:0831",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:0831"
          },
          {
            "name": "RHSA-2019:2043",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2043"
          },
          {
            "name": "RHSA-2019:2029",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2029"
          },
          {
            "name": "RHSA-2020:0036",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0036"
          },
          {
            "name": "RHSA-2020:0100",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0100"
          },
          {
            "name": "RHSA-2020:0103",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0103"
          },
          {
            "name": "RHSA-2020:0179",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0179"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2018-10-29T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-01-21T19:06:22.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html"
        },
        {
          "name": "USN-3835-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3835-1/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16"
        },
        {
          "name": "USN-3880-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3880-1/"
        },
        {
          "name": "USN-3871-5",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3871-5/"
        },
        {
          "name": "USN-3871-4",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3871-4/"
        },
        {
          "name": "[oss-security] 20181029 Linux kernel: TLB flush happens too late on mremap (CVE-2018-18281; fixed in 4.9.135, 4.14.78, 4.18.16, 4.19)",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2018/10/29/5"
        },
        {
          "name": "USN-3880-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3880-2/"
        },
        {
          "name": "USN-3832-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3832-1/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821"
        },
        {
          "name": "105761",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/105761"
        },
        {
          "name": "USN-3871-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3871-1/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78"
        },
        {
          "name": "106503",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/106503"
        },
        {
          "name": "USN-3871-3",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3871-3/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1695"
        },
        {
          "name": "[debian-lts-announce] 20190315 [SECURITY] [DLA 1715-1] linux-4.9 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135"
        },
        {
          "name": "[debian-lts-announce] 20190327 [SECURITY] [DLA 1731-1] linux security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
        },
        {
          "name": "[debian-lts-announce] 20190401 [SECURITY] [DLA 1731-2] linux regression update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html"
        },
        {
          "name": "RHSA-2019:0831",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:0831"
        },
        {
          "name": "RHSA-2019:2043",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2043"
        },
        {
          "name": "RHSA-2019:2029",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2029"
        },
        {
          "name": "RHSA-2020:0036",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2020:0036"
        },
        {
          "name": "RHSA-2020:0100",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2020:0100"
        },
        {
          "name": "RHSA-2020:0103",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2020:0103"
        },
        {
          "name": "RHSA-2020:0179",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2020:0179"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-18281",
          "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": "Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html"
            },
            {
              "name": "USN-3835-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3835-1/"
            },
            {
              "name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16",
              "refsource": "CONFIRM",
              "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16"
            },
            {
              "name": "USN-3880-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3880-1/"
            },
            {
              "name": "USN-3871-5",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3871-5/"
            },
            {
              "name": "USN-3871-4",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3871-4/"
            },
            {
              "name": "[oss-security] 20181029 Linux kernel: TLB flush happens too late on mremap (CVE-2018-18281; fixed in 4.9.135, 4.14.78, 4.18.16, 4.19)",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2018/10/29/5"
            },
            {
              "name": "USN-3880-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3880-2/"
            },
            {
              "name": "USN-3832-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3832-1/"
            },
            {
              "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821",
              "refsource": "CONFIRM",
              "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821"
            },
            {
              "name": "105761",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/105761"
            },
            {
              "name": "USN-3871-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3871-1/"
            },
            {
              "name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78",
              "refsource": "CONFIRM",
              "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78"
            },
            {
              "name": "106503",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/106503"
            },
            {
              "name": "USN-3871-3",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3871-3/"
            },
            {
              "name": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1695",
              "refsource": "MISC",
              "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1695"
            },
            {
              "name": "[debian-lts-announce] 20190315 [SECURITY] [DLA 1715-1] linux-4.9 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"
            },
            {
              "name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135",
              "refsource": "CONFIRM",
              "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135"
            },
            {
              "name": "[debian-lts-announce] 20190327 [SECURITY] [DLA 1731-1] linux security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
            },
            {
              "name": "[debian-lts-announce] 20190401 [SECURITY] [DLA 1731-2] linux regression update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html"
            },
            {
              "name": "RHSA-2019:0831",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:0831"
            },
            {
              "name": "RHSA-2019:2043",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:2043"
            },
            {
              "name": "RHSA-2019:2029",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:2029"
            },
            {
              "name": "RHSA-2020:0036",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2020:0036"
            },
            {
              "name": "RHSA-2020:0100",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2020:0100"
            },
            {
              "name": "RHSA-2020:0103",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2020:0103"
            },
            {
              "name": "RHSA-2020:0179",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2020:0179"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-18281",
    "datePublished": "2018-10-30T18:00:00.000Z",
    "dateReserved": "2018-10-12T00:00:00.000Z",
    "dateUpdated": "2024-08-05T11:08:21.376Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2018-18281",
      "date": "2026-10-31",
      "epss": "0.01104",
      "percentile": "0.65778"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "00CE0B27-26A0-4307-A248-A29D516525D0",
                  "versionEndExcluding": "4.9.135",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "D99EB273-47E2-4E77-9D0D-64C726857DF5",
                  "versionEndExcluding": "4.14.78",
                  "versionStartIncluding": "4.9.136",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "9D9D80C7-B3D0-4087-8868-7781AB50744E",
                  "versionEndExcluding": "4.18.16",
                  "versionStartIncluding": "4.14.79",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "570A682A-5DCF-4050-BFF8-74BA56FF487C",
                  "versionEndExcluding": "4.19",
                  "versionStartIncluding": "4.18.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*",
                  "matchCriteriaId": "8D305F7A-D159-4716-AB26-5E38BB5CD991",
                  "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:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
                  "matchCriteriaId": "07C312A0-CD2C-4B9C-B064-6409B25C278F",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19."
        },
        {
          "lang": "es",
          "value": "Desde la versi\u00f3n 3.2 del kernel de Linux, la syscall mremap() realiza vaciados TLB tras soltar bloqueos de tabla de p\u00e1gina. Si una syscall como ftruncate() elimina las entradas de las tablas de p\u00e1gina de una tarea en medio de mremap(), una entrada TLB obsoleta puede permanecer por poco tiempo, lo que permite el acceso a una p\u00e1gina f\u00edsica una vez se ha devuelto al asignador de p\u00e1ginas y se reutiliza. Esto se ha solucionado en las siguientes versiones del kernel: 4.9.135, 4.14.78, 4.18.16 y 4.19."
        }
      ],
      "id": "CVE-2018-18281",
      "lastModified": "2024-11-21T03:55:38.347",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "LOCAL",
              "authentication": "NONE",
              "availabilityImpact": "PARTIAL",
              "baseScore": 4.6,
              "confidentialityImpact": "PARTIAL",
              "integrityImpact": "PARTIAL",
              "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
              "version": "2.0"
            },
            "exploitabilityScore": 3.9,
            "impactScore": 6.4,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV30": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.0"
            },
            "exploitabilityScore": 1.8,
            "impactScore": 5.9,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2018-10-30T18:29:00.737",
      "references": [
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch",
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Patch",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2018/10/29/5"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/105761"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/106503"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://access.redhat.com/errata/RHSA-2019:0831"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://access.redhat.com/errata/RHSA-2019:2029"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://access.redhat.com/errata/RHSA-2019:2043"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://access.redhat.com/errata/RHSA-2020:0036"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://access.redhat.com/errata/RHSA-2020:0100"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://access.redhat.com/errata/RHSA-2020:0103"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://access.redhat.com/errata/RHSA-2020:0179"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Exploit",
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1695"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3832-1/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3835-1/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3871-1/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3871-3/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3871-4/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3871-5/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3880-1/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3880-2/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Patch",
            "Third Party Advisory"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2018/10/29/5"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/105761"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory",
            "VDB Entry"
          ],
          "url": "http://www.securityfocus.com/bid/106503"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://access.redhat.com/errata/RHSA-2019:0831"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://access.redhat.com/errata/RHSA-2019:2029"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://access.redhat.com/errata/RHSA-2019:2043"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://access.redhat.com/errata/RHSA-2020:0036"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://access.redhat.com/errata/RHSA-2020:0100"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://access.redhat.com/errata/RHSA-2020:0103"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://access.redhat.com/errata/RHSA-2020:0179"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Exploit",
            "Patch",
            "Third Party Advisory"
          ],
          "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1695"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Mailing List",
            "Third Party Advisory"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3832-1/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3835-1/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3871-1/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3871-3/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3871-4/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3871-5/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3880-1/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://usn.ubuntu.com/3880-2/"
        }
      ],
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-459"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "00CE0B27-26A0-4307-A248-A29D516525D0",
                    "versionEndExcluding": "4.9.135",
                    "versionStartIncluding": "3.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D99EB273-47E2-4E77-9D0D-64C726857DF5",
                    "versionEndExcluding": "4.14.78",
                    "versionStartIncluding": "4.9.136",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9D9D80C7-B3D0-4087-8868-7781AB50744E",
                    "versionEndExcluding": "4.18.16",
                    "versionStartIncluding": "4.14.79",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "570A682A-5DCF-4050-BFF8-74BA56FF487C",
                    "versionEndExcluding": "4.19",
                    "versionStartIncluding": "4.18.17",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*",
                    "matchCriteriaId": "8D305F7A-D159-4716-AB26-5E38BB5CD991",
                    "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:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
                    "matchCriteriaId": "07C312A0-CD2C-4B9C-B064-6409B25C278F",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19."
          },
          {
            "lang": "es",
            "value": "Desde la versi\u00f3n 3.2 del kernel de Linux, la syscall mremap() realiza vaciados TLB tras soltar bloqueos de tabla de p\u00e1gina. Si una syscall como ftruncate() elimina las entradas de las tablas de p\u00e1gina de una tarea en medio de mremap(), una entrada TLB obsoleta puede permanecer por poco tiempo, lo que permite el acceso a una p\u00e1gina f\u00edsica una vez se ha devuelto al asignador de p\u00e1ginas y se reutiliza. Esto se ha solucionado en las siguientes versiones del kernel: 4.9.135, 4.14.78, 4.18.16 y 4.19."
          }
        ],
        "id": "CVE-2018-18281",
        "lastModified": "2024-11-21T03:55:38.347",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 4.6,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "PARTIAL",
                "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 6.4,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.0"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2018-10-30T18:29:00.737",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2018/10/29/5"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/105761"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/106503"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://access.redhat.com/errata/RHSA-2019:0831"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://access.redhat.com/errata/RHSA-2019:2029"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://access.redhat.com/errata/RHSA-2019:2043"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://access.redhat.com/errata/RHSA-2020:0036"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://access.redhat.com/errata/RHSA-2020:0100"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://access.redhat.com/errata/RHSA-2020:0103"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://access.redhat.com/errata/RHSA-2020:0179"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Exploit",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1695"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3832-1/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3835-1/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3871-1/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3871-3/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3871-4/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3871-5/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3880-1/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3880-2/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2018/10/29/5"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/105761"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/106503"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://access.redhat.com/errata/RHSA-2019:0831"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://access.redhat.com/errata/RHSA-2019:2029"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://access.redhat.com/errata/RHSA-2019:2043"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://access.redhat.com/errata/RHSA-2020:0036"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://access.redhat.com/errata/RHSA-2020:0100"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://access.redhat.com/errata/RHSA-2020:0103"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://access.redhat.com/errata/RHSA-2020:0179"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1695"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3832-1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3835-1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3871-1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3871-3/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3871-4/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3871-5/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3880-1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3880-2/"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-459"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T05:49:36+00:00",
      "cve": "CVE-2018-18281",
      "id": "CVE-2018-18281",
      "initial_release_date": "2018-10-18T00:00:00+00:00",
      "product_status:fixed": "572",
      "product_status:known_not_affected": "63",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: TLB flush happens too late on mremap",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-18281.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T08:37:16Z",
      "cve": "CVE-2018-18281",
      "id": "CVE-2018-18281",
      "initial_release_date": "2023-02-15T04:23:00Z",
      "product_status:known_affected": "82",
      "product_status:known_not_affected": "66",
      "product_status:recommended": "787",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2018-18281",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-18281.json",
      "version": "19"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.