Vulnerability-Lookup

BDU:2021-01416 (CVE-2018-18021)

Vulnerability from fstec – Published: 2021-03-21 – Updated: 2024-05-31 – View on bdu.fstec.ru Fixed

Title

Уязвимость подсистемы виртуализации Kernel-based Virtual Machine (KVM) в файле arch/arm64/kvm/guest.c ядра операционной системы Linux, позволяющая нарушителю нарушить целостность данных, а также вызвать отказ в обслуживании

Summary

Уязвимость подсистемы виртуализации Kernel-based Virtual Machine (KVM) в файле arch/arm64/kvm/guest.c ядра операционной системы Linux связана с недостатком механизма проверки вводимых данных. Эксплуатация уязвимости может позволить нарушителю нарушить целостность данных, а также вызвать отказ в обслуживании

Severity

6.2 (Medium) CVSS 2.0


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

7.1 (High) CVSS 3.0


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Resource manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-20 - Недостаточная проверка вводимых данных

Aliases

CVE-2018-18021

References

32 references

URL
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a3f9…
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d26c2…
http://www.securityfocus.com/bid/105550
https://access.redhat.com/errata/RHSA-2018:3656
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.12
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18021
https://git.kernel.org/linus/2a3f93459d689d990b3ecfbe782fec89b97d3279
https://git.kernel.org/linus/d26c25a9d19b5976b319af528886f89cf455692d
https://github.com/torvalds/linux/commit/2a3f93459d689d990b3ecfbe782fec89b97d3279
https://github.com/torvalds/linux/commit/d26c25a9d19b5976b319af528886f89cf455692d
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.74
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.12
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.160
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.131
https://nvd.nist.gov/vuln/detail/CVE-2018-18021
https://security-tracker.debian.org/tracker/CVE-2018-18021
https://ubuntu.com/security/notices/USN-3821-1
https://ubuntu.com/security/notices/USN-3821-2
https://ubuntu.com/security/notices/USN-3931-1
https://ubuntu.com/security/notices/USN-3931-2
https://usn.ubuntu.com/3821-1/
https://usn.ubuntu.com/3821-2/
https://usn.ubuntu.com/3931-1/
https://usn.ubuntu.com/3931-2
https://usn.ubuntu.com/3931-2/
https://usn.ubuntu.com/usn/usn-3821-1
https://usn.ubuntu.com/usn/usn-3821-2
https://usn.ubuntu.com/usn/usn-3931-1
https://usn.ubuntu.com/usn/usn-3931-2
https://www.cve.org/CVERecord?id=CVE-2018-18021
https://www.debian.org/security/2018/dsa-4313
https://www.openwall.com/lists/oss-security/2018/10/02/2

Impacted products

4 products from 3 vendors

Vendors

Canonical Ltd., Сообщество свободного программного обеспечения, ООО «РусБИТех-Астра»

Products

Ubuntu, Debian GNU/Linux, Astra Linux Common Edition (запись в едином реестре российских программ №4433), Linux

Versions

12.04 (Ubuntu), 16.04 LTS (Ubuntu), 9 (Debian GNU/Linux), 18.04 LTS (Ubuntu), 2.12 «Орёл» (Astra Linux Common Edition), 14.04 ESM (Ubuntu), 8 (Debian GNU/Linux), 10 (Debian GNU/Linux), от 4.0 до 4.4.159 включительно (Linux), от 4.5 до 4.9.130 включительно (Linux), от 4.10 до 4.14.73 включительно (Linux), от 4.15 до 4.18.11 включительно (Linux)

Product types

Operating system

Platforms

Canonical Ltd. Ubuntu 12.04 32-bit, Canonical Ltd. Ubuntu 16.04 LTS 32-bit, Сообщество свободного программного обеспечения Debian GNU/Linux 9, Canonical Ltd. Ubuntu 18.04 LTS, ООО «РусБИТех-Астра» Astra Linux Common Edition 2.12 «Орёл» (запись в едином реестре российских программ №4433), Canonical Ltd. Ubuntu 14.04 ESM, Сообщество свободного программного обеспечения Debian GNU/Linux 8, Сообщество свободного программного обеспечения Debian GNU/Linux 10, Сообщество свободного программного обеспечения Linux до 4.18.12

Mitigations

Использование рекомендаций: Для Linux: https://git.kernel.org/linus/2a3f93459d689d990b3ecfbe782fec89b97d3279 https://git.kernel.org/linus/d26c25a9d19b5976b319af528886f89cf455692d https://github.com/torvalds/linux/commit/2a3f93459d689d990b3ecfbe782fec89b97d3279 https://github.com/torvalds/linux/commit/d26c25a9d19b5976b319af528886f89cf455692d https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.74 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.12 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.160 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.131 Для Debian: Обновление программного обеспечения (пакета linux-4.9) до 4.9.110-3+deb9u5~deb8u1 или более поздней версии Для Astra Linux: Обновление программного обеспечения (пакета linux-4.9) до 4.9.110-3+deb9u5~deb8u1 или более поздней версии Для Ubuntu: https://usn.ubuntu.com/3821-1/ https://usn.ubuntu.com/3821-2/ https://usn.ubuntu.com/3931-1/ https://usn.ubuntu.com/3931-2

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:N/I:C/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:N/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, \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "12.04 (Ubuntu), 16.04 LTS (Ubuntu), 9 (Debian GNU/Linux), 18.04 LTS (Ubuntu), 2.12 \u00ab\u041e\u0440\u0451\u043b\u00bb (Astra Linux Common Edition), 14.04 ESM (Ubuntu), 8 (Debian GNU/Linux), 10 (Debian GNU/Linux), \u043e\u0442 4.0 \u0434\u043e 4.4.159 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.5 \u0434\u043e 4.9.130 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.10 \u0434\u043e 4.14.73 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.18.11 \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/linus/2a3f93459d689d990b3ecfbe782fec89b97d3279\nhttps://git.kernel.org/linus/d26c25a9d19b5976b319af528886f89cf455692d\nhttps://github.com/torvalds/linux/commit/2a3f93459d689d990b3ecfbe782fec89b97d3279\nhttps://github.com/torvalds/linux/commit/d26c25a9d19b5976b319af528886f89cf455692d\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.74\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.12\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.160\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.131\n\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-4.9) \u0434\u043e 4.9.110-3+deb9u5~deb8u1 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0437\u0434\u043d\u0435\u0439 \u0432\u0435\u0440\u0441\u0438\u0438\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-4.9) \u0434\u043e 4.9.110-3+deb9u5~deb8u1 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0437\u0434\u043d\u0435\u0439 \u0432\u0435\u0440\u0441\u0438\u0438\n\n\u0414\u043b\u044f Ubuntu:\nhttps://usn.ubuntu.com/3821-1/ \nhttps://usn.ubuntu.com/3821-2/ \nhttps://usn.ubuntu.com/3931-1/\nhttps://usn.ubuntu.com/3931-2",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "01.10.2018",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "31.05.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "21.03.2021",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2021-01416",
  "\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-2018-18021",
  "\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, 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), 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 12.04 32-bit, Canonical Ltd. Ubuntu 16.04 LTS 32-bit, \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 Debian GNU/Linux 9 , Canonical Ltd. Ubuntu 18.04 LTS , \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), Canonical Ltd. Ubuntu 14.04 ESM , \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 Debian GNU/Linux 8 , \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 Debian GNU/Linux 10 , \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 4.18.12 ",
  "\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 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 Kernel-based Virtual Machine (KVM) \u0432 \u0444\u0430\u0439\u043b\u0435 arch/arm64/kvm/guest.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 \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u044c \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0434\u0430\u043d\u043d\u044b\u0445, \u0430 \u0442\u0430\u043a\u0436\u0435 \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": "\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)",
  "\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 \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 Kernel-based Virtual Machine (KVM) \u0432 \u0444\u0430\u0439\u043b\u0435 arch/arm64/kvm/guest.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 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043a\u043e\u043c \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0432\u0432\u043e\u0434\u0438\u043c\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 \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u044c \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0434\u0430\u043d\u043d\u044b\u0445, \u0430 \u0442\u0430\u043a\u0436\u0435 \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\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=2a3f93459d689d990b3ecfbe782fec89b97d3279\nhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d26c25a9d19b5976b319af528886f89cf455692d\nhttp://www.securityfocus.com/bid/105550\nhttps://access.redhat.com/errata/RHSA-2018:3656\nhttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.12\nhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18021\nhttps://git.kernel.org/linus/2a3f93459d689d990b3ecfbe782fec89b97d3279\nhttps://git.kernel.org/linus/d26c25a9d19b5976b319af528886f89cf455692d\nhttps://github.com/torvalds/linux/commit/2a3f93459d689d990b3ecfbe782fec89b97d3279\nhttps://github.com/torvalds/linux/commit/d26c25a9d19b5976b319af528886f89cf455692d\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.74\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.12\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.160\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.131\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-18021\nhttps://security-tracker.debian.org/tracker/CVE-2018-18021\nhttps://ubuntu.com/security/notices/USN-3821-1\nhttps://ubuntu.com/security/notices/USN-3821-2\nhttps://ubuntu.com/security/notices/USN-3931-1\nhttps://ubuntu.com/security/notices/USN-3931-2\nhttps://usn.ubuntu.com/3821-1/\nhttps://usn.ubuntu.com/3821-2/\nhttps://usn.ubuntu.com/3931-1/\nhttps://usn.ubuntu.com/3931-2\nhttps://usn.ubuntu.com/3931-2/\nhttps://usn.ubuntu.com/usn/usn-3821-1\nhttps://usn.ubuntu.com/usn/usn-3821-2\nhttps://usn.ubuntu.com/usn/usn-3931-1\nhttps://usn.ubuntu.com/usn/usn-3931-2\nhttps://www.cve.org/CVERecord?id=CVE-2018-18021\nhttps://www.debian.org/security/2018/dsa-4313\nhttps://www.openwall.com/lists/oss-security/2018/10/02/2",
  "\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",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-20",
  "\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 6,2)\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 7,1)"
}

CVE-2018-18021 (GCVE-0-2018-18021)

Vulnerability from cvelistv5 – Published: 2018-10-07 06:00 – Updated: 2024-08-05 11:01

Summary

arch/arm64/kvm/guest.c in KVM in the Linux kernel before 4.18.12 on the arm64 platform mishandles the KVM_SET_ON_REG ioctl. This is exploitable by attackers who can create virtual machines. An attacker can arbitrarily redirect the hypervisor flow of control (with full register control). An attacker can also cause a denial of service (hypervisor panic) via an illegal exception return. This occurs because of insufficient restrictions on userspace access to the core register file, and because PSTATE.M validation does not prevent unintended execution modes.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

13 references

URL	Tags
https://usn.ubuntu.com/3821-1/	vendor-advisoryx_refsource_UBUNTU
https://github.com/torvalds/linux/commit/2a3f9345…	x_refsource_MISC
https://www.openwall.com/lists/oss-security/2018/…	x_refsource_MISC
https://cdn.kernel.org/pub/linux/kernel/v4.x/Chan…	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2018:3656	vendor-advisoryx_refsource_REDHAT
https://github.com/torvalds/linux/commit/d26c25a9…	x_refsource_MISC
http://www.securityfocus.com/bid/105550	vdb-entryx_refsource_BID
https://usn.ubuntu.com/3821-2/	vendor-advisoryx_refsource_UBUNTU
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_MISC
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_MISC
https://www.debian.org/security/2018/dsa-4313	vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/3931-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3931-2/	vendor-advisoryx_refsource_UBUNTU

Date Public

2018-10-07 00:00

Show details on NVD website

JSON

To clipboard

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              "name": "https://github.com/torvalds/linux/commit/d26c25a9d19b5976b319af528886f89cf455692d",
              "refsource": "MISC",
              "url": "https://github.com/torvalds/linux/commit/d26c25a9d19b5976b319af528886f89cf455692d"
            },
            {
              "name": "105550",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/105550"
            },
            {
              "name": "USN-3821-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3821-2/"
            },
            {
              "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a3f93459d689d990b3ecfbe782fec89b97d3279",
              "refsource": "MISC",
              "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a3f93459d689d990b3ecfbe782fec89b97d3279"
            },
            {
              "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d26c25a9d19b5976b319af528886f89cf455692d",
              "refsource": "MISC",
              "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d26c25a9d19b5976b319af528886f89cf455692d"
            },
            {
              "name": "DSA-4313",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2018/dsa-4313"
            },
            {
              "name": "USN-3931-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3931-1/"
            },
            {
              "name": "USN-3931-2",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/3931-2/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-18021",
    "datePublished": "2018-10-07T06:00:00.000Z",
    "dateReserved": "2018-10-07T00:00:00.000Z",
    "dateUpdated": "2024-08-05T11:01:14.808Z",
    "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.

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.