Vulnerability-Lookup

BDU:2019-01113

Vulnerability from fstec - Published: 30.12.2018

Title

Уязвимость реализации функции update_blocked_averages() ядра операционных систем Linux, позволяющая нарушителю вызвать отказ в обслуживании

Description

Уязвимость реализации функции update_blocked_averages() ядра операционных систем Linux связана с выполнением цикла с недоступным условием выхода. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, вызвать отказ в обслуживании

Severity ?


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

Vendor

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

Software Name

Astra Linux Special Edition (запись в едином реестре российских программ №369), Ubuntu, SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP, Red Hat Enterprise Linux, Suse Linux Enterprise Server, OpenShift Container Platform, Linux

Software Version

1.5 «Смоленск» (Astra Linux Special Edition), 16.04 LTS (Ubuntu), 18.04 LTS (Ubuntu), V2.6.0 (SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP), 8 (Red Hat Enterprise Linux), 14.04 ESM (Ubuntu), 12 SP3-BCL (Suse Linux Enterprise Server), 4.2 (OpenShift Container Platform), 4.3 (OpenShift Container Platform), 4.4 (OpenShift Container Platform), 4.5 (OpenShift Container Platform), 4.6 (OpenShift Container Platform), от 4.15 до 4.19.14 включительно (Linux), от 4.13 до 4.14.92 включительно (Linux), от 4.20 до 4.20.1 включительно (Linux)

Possible Mitigations

Использование рекомендаций: Для Linux: https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2 Для SIMATIC: https://www.siemens.com/cert/operational-guidelines-industrial-security Для Astra Linux: https://wiki.astralinux.ru/pages/viewpage.action?pageId=117998111 Для Ubuntu: https://usn.ubuntu.com/usn/usn-4115-1 https://usn.ubuntu.com/usn/usn-4118-1 https://usn.ubuntu.com/usn/usn-4211-1 https://usn.ubuntu.com/usn/usn-4211-2 Для продуктов Novell Inc.: https://www.suse.com/security/cve/CVE-2018-20784/ Для продуктов Red Hat: https://access.redhat.com/security/cve/cve-2018-20784

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0 https://access.redhat.com/errata/RHSA-2019:1959 https://access.redhat.com/errata/RHSA-2019:1971 https://access.redhat.com/security/cve/cve-2018-20784 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2 https://cert-portal.siemens.com/productcert/pdf/ssb-439005.pdf https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20784 https://git.kernel.org/linus/c40f7d74c741a907cfaeb73a7697081881c497d0 https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.93 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.101 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.15 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2 https://nvd.nist.gov/vuln/detail/CVE-2018-20784 https://securitylab.ru/vulnerability/498123.php https://ubuntu.com/security/notices/USN-4115-1 https://ubuntu.com/security/notices/USN-4118-1 https://ubuntu.com/security/notices/USN-4211-1 https://ubuntu.com/security/notices/USN-4211-2 https://usn.ubuntu.com/4115-1/ https://usn.ubuntu.com/4118-1/ https://usn.ubuntu.com/4211-1/ https://usn.ubuntu.com/4211-2/ https://usn.ubuntu.com/usn/usn-4115-1 https://usn.ubuntu.com/usn/usn-4118-1 https://usn.ubuntu.com/usn/usn-4211-1 https://usn.ubuntu.com/usn/usn-4211-2 https://wiki.astralinux.ru/pages/viewpage.action?pageId=117998111 https://www.cve.org/CVERecord?id=CVE-2018-20784 https://www.siemens.com/cert/operational-guidelines-industrial-security https://www.suse.com/security/cve/CVE-2018-20784/

CWE

CWE-835

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
  "CVSS 3.0": "AV:N/AC:L/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": "\u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, Canonical Ltd., Siemens AG, Red Hat Inc., Novell Inc., \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": "1.5 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb (Astra Linux Special Edition), 16.04 LTS (Ubuntu), 18.04 LTS (Ubuntu), V2.6.0 (SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP), 8 (Red Hat Enterprise Linux), 14.04 ESM (Ubuntu), 12 SP3-BCL (Suse Linux Enterprise Server), 4.2 (OpenShift Container Platform), 4.3 (OpenShift Container Platform), 4.4 (OpenShift Container Platform), 4.5 (OpenShift Container Platform), 4.6 (OpenShift Container Platform), \u043e\u0442 4.15 \u0434\u043e 4.19.14 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.13 \u0434\u043e 4.14.92 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.20 \u0434\u043e 4.20.1 \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://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2\n\n\u0414\u043b\u044f SIMATIC:\nhttps://www.siemens.com/cert/operational-guidelines-industrial-security\n\n\u0414\u043b\u044f Astra Linux:\nhttps://wiki.astralinux.ru/pages/viewpage.action?pageId=117998111\n\n\u0414\u043b\u044f Ubuntu:\nhttps://usn.ubuntu.com/usn/usn-4115-1\nhttps://usn.ubuntu.com/usn/usn-4118-1\nhttps://usn.ubuntu.com/usn/usn-4211-1\nhttps://usn.ubuntu.com/usn/usn-4211-2\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Novell Inc.:\nhttps://www.suse.com/security/cve/CVE-2018-20784/\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Red Hat:\nhttps://access.redhat.com/security/cve/cve-2018-20784",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "30.12.2018",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "03.12.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "22.03.2019",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2019-01113",
  "\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-2018-20784",
  "\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": "Astra Linux Special 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 \u2116369), Ubuntu, SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP, Red Hat Enterprise Linux, Suse Linux Enterprise Server, OpenShift Container Platform, 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": "\u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 1.5 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\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 \u2116369), Canonical Ltd. Ubuntu 16.04 LTS , Canonical Ltd. Ubuntu 18.04 LTS , \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 4.20.2 , Red Hat Inc. Red Hat Enterprise Linux 8 , Canonical Ltd. Ubuntu 14.04 ESM , Novell Inc. Suse Linux Enterprise Server 12 SP3-BCL ",
  "\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 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 update_blocked_averages() \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c Linux, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\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": "\u0412\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0446\u0438\u043a\u043b\u0430 \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u043c \u0443\u0441\u043b\u043e\u0432\u0438\u0435\u043c \u0432\u044b\u0445\u043e\u0434\u0430 (\u0431\u0435\u0441\u043a\u043e\u043d\u0435\u0447\u043d\u044b\u0439 \u0446\u0438\u043a\u043b) (CWE-835)",
  "\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 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 update_blocked_averages() \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c Linux \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435\u043c \u0446\u0438\u043a\u043b\u0430 \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u043c \u0443\u0441\u043b\u043e\u0432\u0438\u0435\u043c \u0432\u044b\u0445\u043e\u0434\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, \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\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",
  "\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": "\u0418\u0441\u0447\u0435\u0440\u043f\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432",
  "\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=c40f7d74c741a907cfaeb73a7697081881c497d0\nhttps://access.redhat.com/errata/RHSA-2019:1959\nhttps://access.redhat.com/errata/RHSA-2019:1971\nhttps://access.redhat.com/security/cve/cve-2018-20784\nhttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2\nhttps://cert-portal.siemens.com/productcert/pdf/ssb-439005.pdf\nhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20784\nhttps://git.kernel.org/linus/c40f7d74c741a907cfaeb73a7697081881c497d0\nhttps://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.93\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.101\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.15\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-20784\nhttps://securitylab.ru/vulnerability/498123.php\nhttps://ubuntu.com/security/notices/USN-4115-1\nhttps://ubuntu.com/security/notices/USN-4118-1\nhttps://ubuntu.com/security/notices/USN-4211-1\nhttps://ubuntu.com/security/notices/USN-4211-2\nhttps://usn.ubuntu.com/4115-1/\nhttps://usn.ubuntu.com/4118-1/\nhttps://usn.ubuntu.com/4211-1/\nhttps://usn.ubuntu.com/4211-2/\nhttps://usn.ubuntu.com/usn/usn-4115-1\nhttps://usn.ubuntu.com/usn/usn-4118-1\nhttps://usn.ubuntu.com/usn/usn-4211-1\nhttps://usn.ubuntu.com/usn/usn-4211-2\nhttps://wiki.astralinux.ru/pages/viewpage.action?pageId=117998111\nhttps://www.cve.org/CVERecord?id=CVE-2018-20784\nhttps://www.siemens.com/cert/operational-guidelines-industrial-security\nhttps://www.suse.com/security/cve/CVE-2018-20784/",
  "\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\u041e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e-\u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0433\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u0410\u0421\u0423 \u0422\u041f, \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-835",
  "\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 7,5)\n\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\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 9,8)\n\u041d\u0435\u0442 \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \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 4.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 0)"
}

CVE-2018-20784 (GCVE-0-2018-20784)

Vulnerability from cvelistv5 – Published: 2019-02-22 15:00 – Updated: 2024-08-05 12:12

Summary

In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq's, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/torvalds/linux/commit/c40f7d74…	x_refsource_MISC
	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://access.redhat.com/errata/RHSA-2019:1959	vendor-advisoryx_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2019:1971	vendor-advisoryx_refsource_REDHAT
	https://usn.ubuntu.com/4115-1/	vendor-advisoryx_refsource_UBUNTU
	https://usn.ubuntu.com/4118-1/	vendor-advisoryx_refsource_UBUNTU
	https://usn.ubuntu.com/4211-2/	vendor-advisoryx_refsource_UBUNTU
	https://usn.ubuntu.com/4211-1/	vendor-advisoryx_refsource_UBUNTU

Date Public ?

2019-02-22 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T12:12:27.694Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2"
          },
          {
            "name": "RHSA-2019:1959",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1959"
          },
          {
            "name": "RHSA-2019:1971",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1971"
          },
          {
            "name": "USN-4115-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4115-1/"
          },
          {
            "name": "USN-4118-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4118-1/"
          },
          {
            "name": "USN-4211-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4211-2/"
          },
          {
            "name": "USN-4211-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4211-1/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2019-02-22T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq\u0027s, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-12-10T01:06:03.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2"
        },
        {
          "name": "RHSA-2019:1959",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1959"
        },
        {
          "name": "RHSA-2019:1971",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1971"
        },
        {
          "name": "USN-4115-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4115-1/"
        },
        {
          "name": "USN-4118-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4118-1/"
        },
        {
          "name": "USN-4211-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4211-2/"
        },
        {
          "name": "USN-4211-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4211-1/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-20784",
          "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": "In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq\u0027s, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0",
              "refsource": "MISC",
              "url": "https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0"
            },
            {
              "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0",
              "refsource": "MISC",
              "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0"
            },
            {
              "name": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2",
              "refsource": "MISC",
              "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2"
            },
            {
              "name": "RHSA-2019:1959",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:1959"
            },
            {
              "name": "RHSA-2019:1971",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:1971"
            },
            {
              "name": "USN-4115-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4115-1/"
            },
            {
              "name": "USN-4118-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4118-1/"
            },
            {
              "name": "USN-4211-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4211-2/"
            },
            {
              "name": "USN-4211-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4211-1/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-20784",
    "datePublished": "2019-02-22T15:00:00.000Z",
    "dateReserved": "2019-02-22T00:00:00.000Z",
    "dateUpdated": "2024-08-05T12:12:27.694Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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:2019-01113

CVE-2018-20784 (GCVE-0-2018-20784)

Tags

Sightings

Nomenclature