Vulnerability-Lookup

BDU:2020-00620 (CVE-2018-18397)

Vulnerability from fstec – Published: 2020-02-17 – Updated: 2024-05-30 – View on bdu.fstec.ru Exploit exists Fixed

Title

Уязвимость компонента userfaultfd ядра операционной системы Linux, позволяющая нарушителю оказать воздействие на целостность защищаемой информации

Summary

Уязвимость компонента userfaultfd ядра операционной системы Linux существует из-за недостаточной проверки входных данных. Эксплуатация уязвимости может позволить нарушителю оказать воздействие на целостность защищаемой информации

Severity

4.9 (Medium) CVSS 2.0


                      
                        AV:L/AC:L/Au:N/C:N/I:C/A:N

5.5 (Medium) CVSS 3.0


                      
                        CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Resource manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-20 - Недостаточная проверка вводимых данных
CWE-863 - Неправильная авторизация

Aliases

CVE-2018-18397

References

34 references

URL
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=29ec9…
https://access.redhat.com/errata/RHBA-2019:0327
https://access.redhat.com/errata/RHSA-2019:0163
https://access.redhat.com/errata/RHSA-2019:0202
https://access.redhat.com/errata/RHSA-2019:0324
https://access.redhat.com/errata/RHSA-2019:0831
https://access.redhat.com/security/cve/CVE-2018-18397
https://bugs.chromium.org/p/project-zero/issues/detail?id=1700
https://bugzilla.redhat.com/show_bug.cgi?id=1641548
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.7
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18397
https://exploit.kitploit.com/2018/12/linux-userfaultfd-tmpfs-file-permission.html
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2…
https://github.com/torvalds/linux/commit/29ec90660d68bbdd69507c1c8b4e33aa299278b1
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.8
https://lore.kernel.org/lkml/20181126173452.26955-1-aarcange@redhat.com/T/#u
https://lore.kernel.org/lkml/20181126173452.26955-2-aarcange@redhat.com/
https://ubuntu.com/security/notices/USN-3901-1
https://ubuntu.com/security/notices/USN-3901-2
https://ubuntu.com/security/notices/USN-3903-1
https://ubuntu.com/security/notices/USN-3903-2
https://usn.ubuntu.com/3901-1/
https://usn.ubuntu.com/3901-2/
https://usn.ubuntu.com/3903-1/
https://usn.ubuntu.com/3903-2/
https://usn.ubuntu.com/usn/usn-3901-1
https://usn.ubuntu.com/usn/usn-3901-2
https://usn.ubuntu.com/usn/usn-3903-1
https://usn.ubuntu.com/usn/usn-3903-2
https://www.cve.org/CVERecord?id=CVE-2018-18397
https://www.openwall.com/lists/oss-security/2018/12/12/1
https://www.suse.com/security/cve/CVE-2018-18397/

Impacted products

19 products from 6 vendors

Vendors

Canonical Ltd., Red Hat, Inc., Novell Inc., ООО «РусБИТех-Астра», Сообщество свободного программного обеспечения

Products

Ubuntu, Red Hat Enterprise Linux, Suse Linux Enterprise Desktop, SUSE Linux Enterprise Server for SAP Applications, SUSE Linux Enterprise Software Development Kit, SUSE Linux Enterprise Workstation Extension, Suse Linux Enterprise Server, Astra Linux Common Edition (запись в едином реестре российских программ №4433), SUSE Linux Enterprise Module for Basesystem, OpenSUSE Leap, SUSE Linux Enterprise Module for Development Tools, SUSE Linux Enterprise Build System Kit, SUSE Linux Enterprise High Availability, SUSE Linux Enterprise Live Patching, SUSE Linux Enterprise Module for Legacy Software, SUSE Linux Enterprise Module for Live Patching, SUSE Linux Enterprise Module for Public Cloud, SUSE Linux Enterprise High Performance Computing, Linux

Versions

14.04 LTS (Ubuntu), 7 (Red Hat Enterprise Linux), 16.04 LTS (Ubuntu), 18.04 LTS (Ubuntu), 18.10 (Ubuntu), 12 SP4 (Suse Linux Enterprise Desktop), 12 SP4 (SUSE Linux Enterprise Server for SAP Applications), 12 SP4 (SUSE Linux Enterprise Software Development Kit), 12 SP4 (SUSE Linux Enterprise Workstation Extension), 12 SP4 (Suse Linux Enterprise Server), 2.12 «Орёл» (Astra Linux Common Edition), 15 (SUSE Linux Enterprise Module for Basesystem), 15 SP1 (SUSE Linux Enterprise Module for Basesystem), 15.0 (OpenSUSE Leap), 15 (SUSE Linux Enterprise Module for Development Tools), 15 SP1 (SUSE Linux Enterprise Module for Development Tools), 12 SP4 (SUSE Linux Enterprise Build System Kit), 12 SP4 (SUSE Linux Enterprise High Availability), 15 (SUSE Linux Enterprise High Availability), 15 SP1 (SUSE Linux Enterprise High Availability), 12 SP4 (SUSE Linux Enterprise Live Patching), 15 SP1 (SUSE Linux Enterprise Module for Legacy Software), 15 (SUSE Linux Enterprise Module for Legacy Software), 15 (SUSE Linux Enterprise Module for Live Patching), 15 (SUSE Linux Enterprise Module for Public Cloud), 15 (SUSE Linux Enterprise Workstation Extension), 15 SP1 (SUSE Linux Enterprise Workstation Extension), 12 SP5 (Suse Linux Enterprise Server), 12 SP5 (SUSE Linux Enterprise Software Development Kit), 7.4 Extended Update Support (Red Hat Enterprise Linux), 7.5 Extended Update Support (Red Hat Enterprise Linux), 12 SP5 (SUSE Linux Enterprise High Performance Computing), 12 SP5 (SUSE Linux Enterprise High Availability), 12 SP5 (SUSE Linux Enterprise Workstation Extension), от 4.11 до 4.14.86 включительно (Linux), от 4.15 до 4.19.7 включительно (Linux)

Product types

Operating system, Application software

Platforms

Canonical Ltd. Ubuntu 14.04 LTS, Red Hat, Inc. Red Hat Enterprise Linux 7, Canonical Ltd. Ubuntu 16.04 LTS, Canonical Ltd. Ubuntu 18.04 LTS, Canonical Ltd. Ubuntu 18.10, Novell Inc. Suse Linux Enterprise Desktop 12 SP4, Novell Inc. SUSE Linux Enterprise Server for SAP Applications 12 SP4, Novell Inc. Suse Linux Enterprise Server 12 SP4, ООО «РусБИТех-Астра» Astra Linux Common Edition 2.12 «Орёл» (запись в едином реестре российских программ №4433), Novell Inc. OpenSUSE Leap 15.0, Novell Inc. Suse Linux Enterprise Server 12 SP5, Inc. Red Hat Enterprise Linux 7.4 Extended Update Support, Inc. Red Hat Enterprise Linux 7.5 Extended Update Support, Сообщество свободного программного обеспечения Linux до 4.19.7

Mitigations

Использование рекомендаций: Для Linux: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=29ec90660d68bbdd69507c1c8b4e33aa299278b1 https://github.com/torvalds/linux/commit/29ec90660d68bbdd69507c1c8b4e33aa299278b1 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.8 Для Ubuntu: https://usn.ubuntu.com/3901-1/ https://usn.ubuntu.com/3901-2/ https://usn.ubuntu.com/3903-1/ https://usn.ubuntu.com/3903-2/ Для программных продуктов Red Hat Inc.: https://bugzilla.redhat.com/show_bug.cgi?id=1641548 https://access.redhat.com/security/cve/CVE-2018-18397 Для программных продуктов Novell Inc.: https://www.suse.com/security/cve/CVE-2018-18397/ Для Astra Linux: Обновление программного обеспечения (пакета linux) до 4.9.17 или более поздней версии

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:N/C:N/I:C/A:N",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Canonical Ltd., Red Hat, Inc., Novell Inc., \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "14.04 LTS (Ubuntu), 7 (Red Hat Enterprise Linux), 16.04 LTS (Ubuntu), 18.04 LTS (Ubuntu), 18.10 (Ubuntu), 12 SP4 (Suse Linux Enterprise Desktop), 12 SP4 (SUSE Linux Enterprise Server for SAP Applications), 12 SP4 (SUSE Linux Enterprise Software Development Kit), 12 SP4 (SUSE Linux Enterprise Workstation Extension), 12 SP4 (Suse Linux Enterprise Server), 2.12 \u00ab\u041e\u0440\u0451\u043b\u00bb (Astra Linux Common Edition), 15 (SUSE Linux Enterprise Module for Basesystem), 15 SP1 (SUSE Linux Enterprise Module for Basesystem), 15.0 (OpenSUSE Leap), 15 (SUSE Linux Enterprise Module for Development Tools), 15 SP1 (SUSE Linux Enterprise Module for Development Tools), 12 SP4 (SUSE Linux Enterprise Build System Kit), 12 SP4 (SUSE Linux Enterprise High Availability), 15 (SUSE Linux Enterprise High Availability), 15 SP1 (SUSE Linux Enterprise High Availability), 12 SP4 (SUSE Linux Enterprise Live Patching), 15 SP1 (SUSE Linux Enterprise Module for Legacy Software), 15 (SUSE Linux Enterprise Module for Legacy Software), 15 (SUSE Linux Enterprise Module for Live Patching), 15 (SUSE Linux Enterprise Module for Public Cloud), 15 (SUSE Linux Enterprise Workstation Extension), 15 SP1 (SUSE Linux Enterprise Workstation Extension), 12 SP5 (Suse Linux Enterprise Server), 12 SP5 (SUSE Linux Enterprise Software Development Kit), 7.4 Extended Update Support (Red Hat Enterprise Linux), 7.5 Extended Update Support (Red Hat Enterprise Linux), 12 SP5 (SUSE Linux Enterprise High Performance Computing), 12 SP5 (SUSE Linux Enterprise High Availability), 12 SP5 (SUSE Linux Enterprise Workstation Extension), \u043e\u0442 4.11 \u0434\u043e 4.14.86 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.7 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\n\u0414\u043b\u044f Linux:\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=29ec90660d68bbdd69507c1c8b4e33aa299278b1\nhttps://github.com/torvalds/linux/commit/29ec90660d68bbdd69507c1c8b4e33aa299278b1\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.8\n\n\u0414\u043b\u044f Ubuntu:\nhttps://usn.ubuntu.com/3901-1/\nhttps://usn.ubuntu.com/3901-2/\nhttps://usn.ubuntu.com/3903-1/\nhttps://usn.ubuntu.com/3903-2/\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Red Hat Inc.:\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1641548\nhttps://access.redhat.com/security/cve/CVE-2018-18397\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Novell Inc.:\nhttps://www.suse.com/security/cve/CVE-2018-18397/\n\n\u0414\u043b\u044f Astra Linux:\n\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f (\u043f\u0430\u043a\u0435\u0442\u0430 linux) \u0434\u043e 4.9.17 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0437\u0434\u043d\u0435\u0439 \u0432\u0435\u0440\u0441\u0438\u0438",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "30.11.2018",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "30.05.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "17.02.2020",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2020-00620",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2018-18397",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Ubuntu, Red Hat Enterprise Linux, Suse Linux Enterprise Desktop, SUSE Linux Enterprise Server for SAP Applications, SUSE Linux Enterprise Software Development Kit, SUSE Linux Enterprise Workstation Extension, Suse Linux Enterprise Server, Astra Linux Common Edition (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21164433), SUSE Linux Enterprise Module for Basesystem, OpenSUSE Leap, SUSE Linux Enterprise Module for Development Tools, SUSE Linux Enterprise Build System Kit, SUSE Linux Enterprise High Availability, SUSE Linux Enterprise Live Patching, SUSE Linux Enterprise Module for Legacy Software, SUSE Linux Enterprise Module for Live Patching, SUSE Linux Enterprise Module for Public Cloud, SUSE Linux Enterprise High Performance Computing, Linux",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Canonical Ltd. Ubuntu 14.04 LTS , Red Hat, Inc. Red Hat Enterprise Linux 7 , Canonical Ltd. Ubuntu 16.04 LTS , Canonical Ltd. Ubuntu 18.04 LTS , Canonical Ltd. Ubuntu 18.10 , Novell Inc. Suse Linux Enterprise Desktop 12 SP4 , Novell Inc. SUSE Linux Enterprise Server for SAP Applications 12 SP4 , Novell Inc. Suse Linux Enterprise Server 12 SP4 , \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Common Edition 2.12 \u00ab\u041e\u0440\u0451\u043b\u00bb  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21164433), Novell Inc. OpenSUSE Leap 15.0 , Novell Inc. Suse Linux Enterprise Server 12 SP5 , Red Hat, Inc. Red Hat Enterprise Linux 7.4 Extended Update Support , Red Hat, Inc. Red Hat Enterprise Linux 7.5 Extended Update Support , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u0434\u043e 4.19.7 ",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 userfaultfd \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u0430\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u0432\u0432\u043e\u0434\u0438\u043c\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 (CWE-20), \u041d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u0430\u044f \u0430\u0432\u0442\u043e\u0440\u0438\u0437\u0430\u0446\u0438\u044f (CWE-863)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 userfaultfd \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u0438\u0437-\u0437\u0430 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=29ec90660d68bbdd69507c1c8b4e33aa299278b1\nhttps://access.redhat.com/errata/RHBA-2019:0327\nhttps://access.redhat.com/errata/RHSA-2019:0163\nhttps://access.redhat.com/errata/RHSA-2019:0202\nhttps://access.redhat.com/errata/RHSA-2019:0324\nhttps://access.redhat.com/errata/RHSA-2019:0831\nhttps://access.redhat.com/security/cve/CVE-2018-18397\nhttps://bugs.chromium.org/p/project-zero/issues/detail?id=1700\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1641548\nhttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87\nhttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.7\nhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18397\nhttps://exploit.kitploit.com/2018/12/linux-userfaultfd-tmpfs-file-permission.html\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=29ec90660d68bbdd69507c1c8b4e33aa299278b1\nhttps://github.com/torvalds/linux/commit/29ec90660d68bbdd69507c1c8b4e33aa299278b1\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.8\nhttps://lore.kernel.org/lkml/20181126173452.26955-1-aarcange@redhat.com/T/#u\nhttps://lore.kernel.org/lkml/20181126173452.26955-2-aarcange@redhat.com/\nhttps://ubuntu.com/security/notices/USN-3901-1\nhttps://ubuntu.com/security/notices/USN-3901-2\nhttps://ubuntu.com/security/notices/USN-3903-1\nhttps://ubuntu.com/security/notices/USN-3903-2\nhttps://usn.ubuntu.com/3901-1/\nhttps://usn.ubuntu.com/3901-2/\nhttps://usn.ubuntu.com/3903-1/\nhttps://usn.ubuntu.com/3903-2/\nhttps://usn.ubuntu.com/usn/usn-3901-1\nhttps://usn.ubuntu.com/usn/usn-3901-2\nhttps://usn.ubuntu.com/usn/usn-3903-1\nhttps://usn.ubuntu.com/usn/usn-3903-2\nhttps://www.cve.org/CVERecord?id=CVE-2018-18397\nhttps://www.openwall.com/lists/oss-security/2018/12/12/1\nhttps://www.suse.com/security/cve/CVE-2018-18397/",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430, \u041f\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0435 \u041f\u041e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-20, CWE-863",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 4,9)\n\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 5,5)"
}

CVE-2018-18397 (GCVE-0-2018-18397)

Vulnerability from cvelistv5 – Published: 2018-12-12 07:00 – Updated: 2024-08-05 11:08

Summary

The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

14 references

URL	Tags
https://usn.ubuntu.com/3903-2/	vendor-advisoryx_refsource_UBUNTU
https://cdn.kernel.org/pub/linux/kernel/v4.x/Chan…	x_refsource_MISC
https://github.com/torvalds/linux/commit/29ec9066…	x_refsource_MISC
https://usn.ubuntu.com/3901-2/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:0324	vendor-advisoryx_refsource_REDHAT
https://bugs.chromium.org/p/project-zero/issues/d…	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:0202	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:0163	vendor-advisoryx_refsource_REDHAT
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_MISC
https://cdn.kernel.org/pub/linux/kernel/v4.x/Chan…	x_refsource_MISC
https://usn.ubuntu.com/3901-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3903-1/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:0831	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHBA-2019:0327	vendor-advisoryx_refsource_REDHAT

Date Public

2018-12-12 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T11:08:21.825Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "USN-3903-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3903-2/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/torvalds/linux/commit/29ec90660d68bbdd69507c1c8b4e33aa299278b1"
          },
          {
            "name": "USN-3901-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3901-2/"
          },
          {
            "name": "RHSA-2019:0324",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:0324"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1700"
          },
          {
            "name": "RHSA-2019:0202",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:0202"
          },
          {
            "name": "RHSA-2019:0163",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:0163"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=29ec90660d68bbdd69507c1c8b4e33aa299278b1"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.7"
          },
          {
            "name": "USN-3901-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3901-1/"
          },
          {
            "name": "USN-3903-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3903-1/"
          },
          {
            "name": "RHSA-2019:0831",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:0831"
          },
          {
            "name": "RHBA-2019:0327",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHBA-2019:0327"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2018-12-12T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-04-24T05:06:07.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "USN-3903-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3903-2/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/torvalds/linux/commit/29ec90660d68bbdd69507c1c8b4e33aa299278b1"
        },
        {
          "name": "USN-3901-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3901-2/"
        },
        {
          "name": "RHSA-2019:0324",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:0324"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1700"
        },
        {
          "name": "RHSA-2019:0202",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:0202"
        },
        {
          "name": "RHSA-2019:0163",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:0163"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=29ec90660d68bbdd69507c1c8b4e33aa299278b1"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.7"
        },
        {
          "name": "USN-3901-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3901-1/"
        },
        {
          "name": "USN-3903-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3903-1/"
        },
        {
          "name": "RHSA-2019:0831",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:0831"
        },
        {
          "name": "RHBA-2019:0327",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHBA-2019:0327"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-18397",
          "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": "The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "USN-3903-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3903-2/"
            },
            {
              "name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87",
              "refsource": "MISC",
              "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.87"
            },
            {
              "name": "https://github.com/torvalds/linux/commit/29ec90660d68bbdd69507c1c8b4e33aa299278b1",
              "refsource": "MISC",
              "url": "https://github.com/torvalds/linux/commit/29ec90660d68bbdd69507c1c8b4e33aa299278b1"
            },
            {
              "name": "USN-3901-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3901-2/"
            },
            {
              "name": "RHSA-2019:0324",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:0324"
            },
            {
              "name": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1700",
              "refsource": "MISC",
              "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1700"
            },
            {
              "name": "RHSA-2019:0202",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:0202"
            },
            {
              "name": "RHSA-2019:0163",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:0163"
            },
            {
              "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=29ec90660d68bbdd69507c1c8b4e33aa299278b1",
              "refsource": "MISC",
              "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=29ec90660d68bbdd69507c1c8b4e33aa299278b1"
            },
            {
              "name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.7",
              "refsource": "MISC",
              "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.7"
            },
            {
              "name": "USN-3901-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3901-1/"
            },
            {
              "name": "USN-3903-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3903-1/"
            },
            {
              "name": "RHSA-2019:0831",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:0831"
            },
            {
              "name": "RHBA-2019:0327",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHBA-2019:0327"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-18397",
    "datePublished": "2018-12-12T07:00:00.000Z",
    "dateReserved": "2018-10-16T00:00:00.000Z",
    "dateUpdated": "2024-08-05T11:08:21.825Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted

BDU:2020-00620 (CVE-2018-18397)

CVE-2018-18397 (GCVE-0-2018-18397)

Tags

Sightings

Nomenclature

Related by attack behaviour