CVE-2018-18281 (GCVE-0-2018-18281)
Vulnerability from cvelistv5
Published
2018-10-30 18:00
Modified
2024-08-05 11:08
Severity ?
CWE
  • n/a
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.
References
http://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.html x_refsource_MISC
https://usn.ubuntu.com/3835-1/ vendor-advisory, x_refsource_UBUNTU
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16 x_refsource_CONFIRM
https://usn.ubuntu.com/3880-1/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/3871-5/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/3871-4/ vendor-advisory, x_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2018/10/29/5 mailing-list, x_refsource_MLIST
https://usn.ubuntu.com/3880-2/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/3832-1/ vendor-advisory, x_refsource_UBUNTU
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821 x_refsource_CONFIRM
http://www.securityfocus.com/bid/105761 vdb-entry, x_refsource_BID
https://usn.ubuntu.com/3871-1/ vendor-advisory, x_refsource_UBUNTU
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78 x_refsource_CONFIRM
http://www.securityfocus.com/bid/106503 vdb-entry, x_refsource_BID
https://usn.ubuntu.com/3871-3/ vendor-advisory, x_refsource_UBUNTU
https://bugs.chromium.org/p/project-zero/issues/detail?id=1695 x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html mailing-list, x_refsource_MLIST
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135 x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html mailing-list, x_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html mailing-list, x_refsource_MLIST
https://access.redhat.com/errata/RHSA-2019:0831 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2043 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2029 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0036 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0100 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0103 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0179 vendor-advisory, x_refsource_REDHAT
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

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              "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"
}


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