Vulnerability-Lookup

BDU:2019-02826 (CVE-2018-20836)

Vulnerability from fstec – Published: 2019-08-08 – Updated: 2024-05-28 – View on bdu.fstec.ru Fixed

Title

Уязвимость функций smp_task_timedout () и smp_task_done () в файле drivers/scsi/libsas/sas_expander.c ядра операционной системы Linux, позволяющая нарушителю оказать влияние на конфиденциальность, целостность и доступность защищаемой информации

Summary

Уязвимость функций smp_task_timedout () и smp_task_done () в файле drivers/scsi/libsas/sas_expander.c ядра операционной системы Linux связана с ошибками синхронизации при использовании общего ресурса. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, оказать влияние на конфиденциальность, целостность и доступность защищаемой информации

Severity

9.3 (High) CVSS 2.0


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

8.1 (High) CVSS 3.0


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Timing and state manipulation, Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-362 - Одновременное выполнение с использованием общего ресурса с неправильной синхронизацией («Ситуация гонки»)
CWE-416 - Использование после освобождения

Aliases

CVE-2018-20836

References

27 references

URL
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html
http://www.securityfocus.com/bid/108196
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20836
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b90c…
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b…
https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.118
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.42
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.180
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.175
https://lists.debian.org/debian-lts-announce/2019/08/msg00016.html
https://lists.debian.org/debian-lts-announce/2019/08/msg00017.html
https://nvd.nist.gov/vuln/detail/CVE-2018-20836
https://nvd.nist.gov/vuln/detail/CVE-2018-20836?cpeVersion=2.2
https://seclists.org/bugtraq/2019/Aug/13
https://seclists.org/bugtraq/2019/Aug/18
https://security.netapp.com/advisory/ntap-20190719-0003/
https://security-tracker.debian.org/tracker/CVE-2018-20836
https://support.f5.com/csp/article/K11225249
https://ubuntu.com/security/notices/USN-4076-1
https://usn.ubuntu.com/4076-1/
https://usn.ubuntu.com/usn/usn-4076-1
https://www.cve.org/CVERecord?id=CVE-2018-20836
https://www.debian.org/security/2019/dsa-4495
https://www.debian.org/security/2019/dsa-4497
https://www.suse.com/security/cve/CVE-2018-20836/

Impacted products

18 products from 3 vendors

Vendors

Canonical Ltd., Сообщество свободного программного обеспечения, Novell Inc.

Products

Ubuntu, Debian GNU/Linux, Suse Linux Enterprise Desktop, SUSE Enterprise Storage, SUSE Linux Enterprise Module for Open Buildservice Development Tools, Suse Linux Enterprise Server, SUSE Linux Enterprise Module for Basesystem, SUSE CaaS Platform, SUSE Linux Enterprise Module for Development Tools, SUSE Linux Enterprise Point of Sale, 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 Server for SAP Applications, Linux

Versions

16.04 LTS (Ubuntu), 9 (Debian GNU/Linux), 12 SP3 (Suse Linux Enterprise Desktop), 12 SP4 (Suse Linux Enterprise Desktop), 4 (SUSE Enterprise Storage), 15 (SUSE Linux Enterprise Module for Open Buildservice Development Tools), 12 SP3 (Suse Linux Enterprise Server), 12 SP4 (Suse Linux Enterprise Server), 15 (SUSE Linux Enterprise Module for Basesystem), 15 SP1 (SUSE Linux Enterprise Module for Basesystem), 3.0 (SUSE CaaS Platform), 5 (SUSE Enterprise Storage), 15 (SUSE Linux Enterprise Module for Development Tools), 15 SP1 (SUSE Linux Enterprise Module for Development Tools), 12 SP2-CLIENT (SUSE Linux Enterprise Point of Sale), 12 SP3 (SUSE Linux Enterprise Build System Kit), 12 SP4 (SUSE Linux Enterprise Build System Kit), 12 SP2-BCL (Suse Linux Enterprise Server), 12 SP2-ESPOS (Suse Linux Enterprise Server), 12 SP2 (SUSE Linux Enterprise High Availability), 12 SP3 (SUSE Linux Enterprise High Availability), 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), 12 (SUSE Linux Enterprise Module for Public Cloud), 15 (SUSE Linux Enterprise Module for Public Cloud), 15 SP1 (SUSE Linux Enterprise Module for Open Buildservice Development Tools), 11 SP4-LTSS (Suse Linux Enterprise Server), 12 SP1-LTSS (Suse Linux Enterprise Server), 12 SP2-LTSS (Suse Linux Enterprise Server), 11 SP4-LTSS (SUSE Linux Enterprise Server for SAP Applications), 15 SP1 (SUSE Linux Enterprise Module for Live Patching), 12 SP3-LTSS (Suse Linux Enterprise Server), 8 (Debian GNU/Linux), от 4.0 до 4.4.179 включительно (Linux), от 4.5 до 4.9.174 включительно (Linux), от 4.10 до 4.14.117 включительно (Linux), от 4.15 до 4.19.41 включительно (Linux)

Product types

Operating system, Application software

Mitigations

Использование рекомендаций: Для Linux: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16ae https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae https://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.118 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.42 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.180 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.175 Для программных продуктов Novell Inc.: https://www.suse.com/security/cve/CVE-2018-20836/ Для программных продуктов Canonical Ltd.: https://usn.ubuntu.com/4076-1/ Для Debian: Обновление программного обеспечения (пакета linux) до 4.19.37-5+deb10u2 или более поздней версии

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
  "CVSS 3.0": "AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "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., \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, Novell Inc.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "16.04 LTS (Ubuntu), 9 (Debian GNU/Linux), 12 SP3 (Suse Linux Enterprise Desktop), 12 SP4 (Suse Linux Enterprise Desktop), 4 (SUSE Enterprise Storage), 15 (SUSE Linux Enterprise Module for Open Buildservice Development Tools), 12 SP3 (Suse Linux Enterprise Server), 12 SP4 (Suse Linux Enterprise Server), 15 (SUSE Linux Enterprise Module for Basesystem), 15 SP1 (SUSE Linux Enterprise Module for Basesystem), 3.0 (SUSE CaaS Platform), 5 (SUSE Enterprise Storage), 15 (SUSE Linux Enterprise Module for Development Tools), 15 SP1 (SUSE Linux Enterprise Module for Development Tools), 12 SP2-CLIENT (SUSE Linux Enterprise Point of Sale), 12 SP3 (SUSE Linux Enterprise Build System Kit), 12 SP4 (SUSE Linux Enterprise Build System Kit), 12 SP2-BCL (Suse Linux Enterprise Server), 12 SP2-ESPOS (Suse Linux Enterprise Server), 12 SP2 (SUSE Linux Enterprise High Availability), 12 SP3 (SUSE Linux Enterprise High Availability), 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), 12 (SUSE Linux Enterprise Module for Public Cloud), 15 (SUSE Linux Enterprise Module for Public Cloud), 15 SP1 (SUSE Linux Enterprise Module for Open Buildservice Development Tools), 11 SP4-LTSS (Suse Linux Enterprise Server), 12 SP1-LTSS (Suse Linux Enterprise Server), 12 SP2-LTSS (Suse Linux Enterprise Server), 11 SP4-LTSS (SUSE Linux Enterprise Server for SAP Applications), 15 SP1 (SUSE Linux Enterprise Module for Live Patching), 12 SP3-LTSS (Suse Linux Enterprise Server), 8 (Debian GNU/Linux), \u043e\u0442 4.0 \u0434\u043e 4.4.179 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.5 \u0434\u043e 4.9.174 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.10 \u0434\u043e 4.14.117 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.41 \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=b90cd6f2b905905fb42671009dc0e27c310a16ae\nhttps://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae\nhttps://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.118\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.42\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.180\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.175\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.: https://www.suse.com/security/cve/CVE-2018-20836/\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Canonical Ltd.: https://usn.ubuntu.com/4076-1/\n\u0414\u043b\u044f Debian:\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 4.19.37-5+deb10u2 \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": "25.09.2018",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "28.05.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "08.08.2019",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2019-02826",
  "\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-2018-20836",
  "\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, Debian GNU/Linux, Suse Linux Enterprise Desktop, SUSE Enterprise Storage, SUSE Linux Enterprise Module for Open Buildservice Development Tools, Suse Linux Enterprise Server, SUSE Linux Enterprise Module for Basesystem, SUSE CaaS Platform, SUSE Linux Enterprise Module for Development Tools, SUSE Linux Enterprise Point of Sale, 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 Server for SAP Applications, 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": null,
  "\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 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 smp_task_timedout () \u0438 smp_task_done () \u0432 \u0444\u0430\u0439\u043b\u0435 drivers/scsi/libsas/sas_expander.c \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\u043b\u0438\u044f\u043d\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\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": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043e\u0431\u0449\u0435\u0433\u043e \u0440\u0435\u0441\u0443\u0440\u0441\u0430 \u0441 \u043d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0439 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0435\u0439 (\u00ab\u0421\u0438\u0442\u0443\u0430\u0446\u0438\u044f \u0433\u043e\u043d\u043a\u0438\u00bb) (CWE-362), \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f (CWE-416)",
  "\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 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 smp_task_timedout () \u0438 smp_task_done () \u0432 \u0444\u0430\u0439\u043b\u0435 drivers/scsi/libsas/sas_expander.c \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\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043e\u0448\u0438\u0431\u043a\u0430\u043c\u0438 \u0441\u0438\u043d\u0445\u0440\u043e\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u043e\u0431\u0449\u0435\u0433\u043e \u0440\u0435\u0441\u0443\u0440\u0441\u0430. \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, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043b\u0438\u044f\u043d\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\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 \u0441\u0440\u043e\u043a\u0430\u043c\u0438 \u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435\u043c, \u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00014.html\nhttp://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html\nhttp://www.securityfocus.com/bid/108196\nhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20836\nhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16ae\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b90cd6f2b905905fb42671009dc0e27c310a16ae\nhttps://github.com/torvalds/linux/commit/b90cd6f2b905905fb42671009dc0e27c310a16ae\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.118\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.42\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.180\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.175\nhttps://lists.debian.org/debian-lts-announce/2019/08/msg00016.html\nhttps://lists.debian.org/debian-lts-announce/2019/08/msg00017.html\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-20836\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-20836?cpeVersion=2.2\nhttps://seclists.org/bugtraq/2019/Aug/13\nhttps://seclists.org/bugtraq/2019/Aug/18\nhttps://security.netapp.com/advisory/ntap-20190719-0003/\nhttps://security-tracker.debian.org/tracker/CVE-2018-20836\nhttps://support.f5.com/csp/article/K11225249\nhttps://ubuntu.com/security/notices/USN-4076-1\nhttps://usn.ubuntu.com/4076-1/\nhttps://usn.ubuntu.com/usn/usn-4076-1\nhttps://www.cve.org/CVERecord?id=CVE-2018-20836\nhttps://www.debian.org/security/2019/dsa-4495\nhttps://www.debian.org/security/2019/dsa-4497\nhttps://www.suse.com/security/cve/CVE-2018-20836/",
  "\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-362, CWE-416",
  "\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": "\u0412\u044b\u0441\u043e\u043a\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 9,3)\n\u0412\u044b\u0441\u043e\u043a\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 8,1)"
}

CVE-2018-20836 (GCVE-0-2018-20836)

Vulnerability from cvelistv5 – Published: 2019-05-07 13:04 – Updated: 2024-08-05 12:12

Summary

An issue was discovered in the Linux kernel before 4.20. There is a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, leading to a use-after-free.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

14 references

URL	Tags
https://github.com/torvalds/linux/commit/b90cd6f2…	x_refsource_MISC
https://git.kernel.org/cgit/linux/kernel/git/torv…	x_refsource_MISC
http://www.securityfocus.com/bid/108196	vdb-entryx_refsource_BID
https://support.f5.com/csp/article/K11225249	x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-2019071…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://usn.ubuntu.com/4076-1/	vendor-advisoryx_refsource_UBUNTU
https://www.debian.org/security/2019/dsa-4495	vendor-advisoryx_refsource_DEBIAN
https://seclists.org/bugtraq/2019/Aug/13	mailing-listx_refsource_BUGTRAQ
https://seclists.org/bugtraq/2019/Aug/18	mailing-listx_refsource_BUGTRAQ
https://www.debian.org/security/2019/dsa-4497	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST

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}

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.

Detection rules are retrieved from Rulezet.

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.