CVE-2018-18281
Vulnerability from cvelistv5
Published
2018-10-30 18:00
Modified
2024-08-05 11:08
Severity ?
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
cve@mitre.orghttp://packetstormsecurity.com/files/150001/Linux-mremap-TLB-Flush-Too-Late.htmlPatch, Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2018/10/29/5Mailing List, Patch, Third Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/105761Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.securityfocus.com/bid/106503Third Party Advisory, VDB Entry
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2019:0831
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2019:2029
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2019:2043
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2020:0036
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2020:0100
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2020:0103
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2020:0179
cve@mitre.orghttps://bugs.chromium.org/p/project-zero/issues/detail?id=1695Exploit, Patch, Third Party Advisory
cve@mitre.orghttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.78Patch, Vendor Advisory
cve@mitre.orghttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.16Patch, Vendor Advisory
cve@mitre.orghttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.135Patch, Vendor Advisory
cve@mitre.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eb66ae030829605d61fbef1909ce310e29f78821Patch, Vendor Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2019/03/msg00017.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2019/03/msg00034.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2019/04/msg00004.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3832-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3835-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3871-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3871-3/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3871-4/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3871-5/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3880-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3880-2/Third Party Advisory
Impacted products
Vendor Product Version
Show details on NVD website

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            {
              "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",
    "dateReserved": "2018-10-12T00:00:00",
    "dateUpdated": "2024-08-05T11:08:21.376Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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  }
}


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