Vulnerability-Lookup

BDU:2020-00620

Vulnerability from fstec - Published: 30.11.2018

Title

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

Description

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 ?


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

Vendor

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

Software Name

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

Software Version

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)

Possible 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

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=29ec90660d68bbdd69507c1c8b4e33aa299278b1 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=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 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/

CWE

CWE-20, CWE-863

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

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

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}

Sightings

Author	Source	Type	Date

Nomenclature

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

Detection rules are retrieved from Rulezet.

Action not permitted

BDU:2020-00620

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

Tags

Sightings

Nomenclature