Vulnerability-Lookup

BDU:2020-05885

Vulnerability from fstec - Published: 23.02.2020

Title

Уязвимость подсистемы виртуализации Kernel-based Virtual Machine (KVM) ядра операционной системы Linux, связанная с раскрытием информации, позволяющая нарушителю получить доступ к защищаемой информации

Description

Уязвимость подсистемы виртуализации Kernel-based Virtual Machine (KVM) ядра операционной системы Linux связана с раскрытием информации. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, получить доступ к защищаемой информации

Severity ?


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

Vendor

ООО «РусБИТех-Астра», Red Hat Inc., Сообщество свободного программного обеспечения, Oracle Corp.

Software Name

Astra Linux Special Edition (запись в едином реестре российских программ №369), Red Hat Enterprise Linux, Debian GNU/Linux, Oracle Linux, Linux

Software Version

1.5 «Смоленск» (Astra Linux Special Edition), 7 (Red Hat Enterprise Linux), 9 (Debian GNU/Linux), 7 (Oracle Linux), 8 (Red Hat Enterprise Linux), 8 (Debian GNU/Linux), 10 (Debian GNU/Linux), от 5.5 до 5.5.6 включительно (Linux), 6 (Oracle Linux), от 4.0 до 4.4.214 включительно (Linux), от 4.5 до 4.9.214 включительно (Linux), от 4.10 до 4.14.171 включительно (Linux), от 4.15 до 4.19.106 включительно (Linux), от 4.20 до 5.4.22 включительно (Linux)

Possible Mitigations

Использование рекомендаций производителя: Для программных продуктов Red Hat: https://bugzilla.redhat.com/show_bug.cgi?id=1805135 Для Debian GNU/Linux: Обновление программного обеспечения (пакета linux) до 5.7.6-1 или более поздней версии https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://www.debian.org/security/2020/dsa-4667 https://www.debian.org/security/2020/dsa-4698 Для Linux: Обновление программного обеспечения до 5.7.6-1 или более поздней версии https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.172 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.107 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.215 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.215 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.23 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.7 Для Astra Linux: https://wiki.astralinux.ru/pages/viewpage.action?pageId=117998111 https://wiki.astralinux.ru/astra-linux-se15-bulletin-20201201SE15 Для Oracle: https://linux.oracle.com/errata/ELSA-2020-5540.html https://linux.oracle.com/errata/ELSA-2020-5542.html https://linux.oracle.com/errata/ELSA-2020-5543.html

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1805135 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-2732 https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.172 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.107 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.215 https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.215 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.23 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.7 https://linux.oracle.com/errata/ELSA-2020-5540.html https://linux.oracle.com/errata/ELSA-2020-5542.html https://linux.oracle.com/errata/ELSA-2020-5543.html https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://lore.kernel.org/stable/20200304085113.GA1419475@kroah.com/ https://nvd.nist.gov/vuln/detail/CVE-2020-2732 https://security-tracker.debian.org/tracker/CVE-2020-2732 https://ubuntu.com/security/notices/USN-4300-1 https://ubuntu.com/security/notices/USN-4301-1 https://ubuntu.com/security/notices/USN-4302-1 https://ubuntu.com/security/notices/USN-4303-1 https://ubuntu.com/security/notices/USN-4303-2 https://usn.ubuntu.com/usn/usn-4300-1 https://usn.ubuntu.com/usn/usn-4301-1 https://usn.ubuntu.com/usn/usn-4302-1 https://usn.ubuntu.com/usn/usn-4303-1 https://usn.ubuntu.com/usn/usn-4303-2 https://wiki.astralinux.ru/astra-linux-se15-bulletin-20201201SE15 https://wiki.astralinux.ru/pages/viewpage.action?pageId=117998111 https://www.cve.org/CVERecord?id=CVE-2020-2732 https://www.debian.org/security/2020/dsa-4667 https://www.debian.org/security/2020/dsa-4698 https://www.openwall.com/lists/oss-security/2020/02/25/4 https://www.spinics.net/lists/kvm/msg208259.html

CWE

CWE-200

JSON

To clipboard

{
  "CVSS 2.0": "AV:A/AC:M/Au:S/C:P/I:N/A:N",
  "CVSS 3.0": "AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/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": "\u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, Red Hat 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, Oracle Corp.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "1.5 \u00ab\u0421\u043c\u043e\u043b\u0435\u043d\u0441\u043a\u00bb (Astra Linux Special Edition), 7 (Red Hat Enterprise Linux), 9 (Debian GNU/Linux), 7 (Oracle Linux), 8 (Red Hat Enterprise Linux), 8 (Debian GNU/Linux), 10 (Debian GNU/Linux), \u043e\u0442 5.5 \u0434\u043e 5.5.6 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), 6 (Oracle Linux), \u043e\u0442 4.0 \u0434\u043e 4.4.214 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.5 \u0434\u043e 4.9.214 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.10 \u0434\u043e 4.14.171 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.15 \u0434\u043e 4.19.106 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.20 \u0434\u043e 5.4.22 \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 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f:\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:\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1805135\n\n\u0414\u043b\u044f Debian GNU/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 5.7.6-1 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0437\u0434\u043d\u0435\u0439 \u0432\u0435\u0440\u0441\u0438\u0438\nhttps://lists.debian.org/debian-lts-announce/2020/06/msg00011.html\t\nhttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.html\t\nhttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.html\t\nhttps://www.debian.org/security/2020/dsa-4667\t\nhttps://www.debian.org/security/2020/dsa-4698\n\n\u0414\u043b\u044f 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 \u0434\u043e 5.7.6-1 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u043f\u043e\u0437\u0434\u043d\u0435\u0439 \u0432\u0435\u0440\u0441\u0438\u0438\nhttps://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec\t \nhttps://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c\t\nhttps://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.172\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.107\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.215\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.215\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.23\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.7\n\n\u0414\u043b\u044f Astra Linux:\nhttps://wiki.astralinux.ru/pages/viewpage.action?pageId=117998111\nhttps://wiki.astralinux.ru/astra-linux-se15-bulletin-20201201SE15\n\n\u0414\u043b\u044f Oracle:\nhttps://linux.oracle.com/errata/ELSA-2020-5540.html\t\nhttps://linux.oracle.com/errata/ELSA-2020-5542.html\t\nhttps://linux.oracle.com/errata/ELSA-2020-5543.html",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "23.02.2020",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "29.01.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "30.12.2020",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2020-05885",
  "\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-2020-2732",
  "\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), Red Hat Enterprise Linux, Debian GNU/Linux, Oracle Linux, 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), Red Hat Inc. Red Hat Enterprise Linux 7 , \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 , Oracle Corp. Oracle Linux 7 , Red Hat Inc. Red Hat Enterprise 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 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 , Oracle Corp. Oracle Linux 6 , \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 5.7 ",
  "\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 \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) \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\u043d\u0430\u044f \u0441 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u0435\u043c \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \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": "\u0420\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u0435 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 (CWE-200)",
  "\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) \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 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u0435\u043c \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438. \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, \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u0434\u043e\u0441\u0442\u0443\u043f \u043a \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": "\u041d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0441\u0431\u043e\u0440 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://bugzilla.redhat.com/show_bug.cgi?id=1805135\nhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-2732\nhttps://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec\nhttps://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c\nhttps://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.172\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.107\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.215\nhttps://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.215\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.23\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.7\nhttps://linux.oracle.com/errata/ELSA-2020-5540.html\nhttps://linux.oracle.com/errata/ELSA-2020-5542.html\nhttps://linux.oracle.com/errata/ELSA-2020-5543.html\nhttps://lists.debian.org/debian-lts-announce/2020/06/msg00011.html\nhttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.html\nhttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.html\nhttps://lore.kernel.org/stable/20200304085113.GA1419475@kroah.com/\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-2732\nhttps://security-tracker.debian.org/tracker/CVE-2020-2732\nhttps://ubuntu.com/security/notices/USN-4300-1\nhttps://ubuntu.com/security/notices/USN-4301-1\nhttps://ubuntu.com/security/notices/USN-4302-1\nhttps://ubuntu.com/security/notices/USN-4303-1\nhttps://ubuntu.com/security/notices/USN-4303-2\nhttps://usn.ubuntu.com/usn/usn-4300-1\nhttps://usn.ubuntu.com/usn/usn-4301-1\nhttps://usn.ubuntu.com/usn/usn-4302-1\nhttps://usn.ubuntu.com/usn/usn-4303-1\nhttps://usn.ubuntu.com/usn/usn-4303-2\nhttps://wiki.astralinux.ru/astra-linux-se15-bulletin-20201201SE15\nhttps://wiki.astralinux.ru/pages/viewpage.action?pageId=117998111\nhttps://www.cve.org/CVERecord?id=CVE-2020-2732\nhttps://www.debian.org/security/2020/dsa-4667\nhttps://www.debian.org/security/2020/dsa-4698\nhttps://www.openwall.com/lists/oss-security/2020/02/25/4\nhttps://www.spinics.net/lists/kvm/msg208259.html",
  "\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-200",
  "\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": "\u041d\u0438\u0437\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 2,3)\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 6,8)\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 (\u043e\u0446\u0435\u043d\u043a\u0430 CVSS 4.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 0)"
}

CVE-2020-2732 (GCVE-0-2020-2732)

Vulnerability from cvelistv5 – Published: 2020-04-08 21:10 – Updated: 2024-09-30 15:47

Summary

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest.

Severity ?

5.8 (Medium)


                        
                          CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CWE

Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise Linux server. Successful attacks of this vulnerability can result in authorized ability to cause a hang or frequently repeatable crash (complete DOS) of Linux Server.

Assigner

oracle

References

URL

Tags

	https://www.openwall.com/lists/oss-security/2020/…	x_refsource_MISC
	https://www.spinics.net/lists/kvm/msg208259.html	x_refsource_MISC
	https://git.kernel.org/linus/07721feee46b4b248402…	x_refsource_MISC
	https://git.kernel.org/linus/35a571346a94fb93b5b3…	x_refsource_MISC
	https://git.kernel.org/linus/e71237d3ff1abf9f3388…	x_refsource_MISC
	https://bugzilla.redhat.com/show_bug.cgi?id=1805135	x_refsource_MISC
	https://linux.oracle.com/errata/ELSA-2020-5540.html	x_refsource_MISC
	https://linux.oracle.com/errata/ELSA-2020-5542.html	x_refsource_MISC
	https://linux.oracle.com/errata/ELSA-2020-5543.html	x_refsource_MISC
	https://www.debian.org/security/2020/dsa-4667	vendor-advisoryx_refsource_DEBIAN
	https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
	https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
	https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
	https://www.debian.org/security/2020/dsa-4698	vendor-advisoryx_refsource_DEBIAN

Impacted products

	Vendor	Product	Version
	Oracle Corporation	Oracle Linux	Affected: 7 Affected: 6

Show details on NVD website

JSON

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                        "version_data": [
                          {
                            "version_affected": "=",
                            "version_value": "7"
                          },
                          {
                            "version_affected": "=",
                            "version_value": "6"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Oracle Corporation"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest."
            }
          ]
        },
        "impact": {
          "cvss": {
            "baseScore": "5.8",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise Linux server.  Successful attacks of this vulnerability can result in authorized ability to cause a hang or frequently repeatable crash (complete DOS) of Linux Server."
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.openwall.com/lists/oss-security/2020/02/25/3",
              "refsource": "MISC",
              "url": "https://www.openwall.com/lists/oss-security/2020/02/25/3"
            },
            {
              "name": "https://www.spinics.net/lists/kvm/msg208259.html",
              "refsource": "MISC",
              "url": "https://www.spinics.net/lists/kvm/msg208259.html"
            },
            {
              "name": "https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec",
              "refsource": "MISC",
              "url": "https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec"
            },
            {
              "name": "https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c",
              "refsource": "MISC",
              "url": "https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c"
            },
            {
              "name": "https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d",
              "refsource": "MISC",
              "url": "https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1805135",
              "refsource": "MISC",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1805135"
            },
            {
              "name": "https://linux.oracle.com/errata/ELSA-2020-5540.html",
              "refsource": "MISC",
              "url": "https://linux.oracle.com/errata/ELSA-2020-5540.html"
            },
            {
              "name": "https://linux.oracle.com/errata/ELSA-2020-5542.html",
              "refsource": "MISC",
              "url": "https://linux.oracle.com/errata/ELSA-2020-5542.html"
            },
            {
              "name": "https://linux.oracle.com/errata/ELSA-2020-5543.html",
              "refsource": "MISC",
              "url": "https://linux.oracle.com/errata/ELSA-2020-5543.html"
            },
            {
              "name": "DSA-4667",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2020/dsa-4667"
            },
            {
              "name": "[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html"
            },
            {
              "name": "[debian-lts-announce] 20200610 [SECURITY] [DLA 2242-1] linux-4.9 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html"
            },
            {
              "name": "[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html"
            },
            {
              "name": "DSA-4698",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2020/dsa-4698"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "43595867-4340-4103-b7a2-9a5208d29a85",
    "assignerShortName": "oracle",
    "cveId": "CVE-2020-2732",
    "datePublished": "2020-04-08T21:10:14.000Z",
    "dateReserved": "2019-12-10T00:00:00.000Z",
    "dateUpdated": "2024-09-30T15:47:44.316Z",
    "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:2020-05885

CVE-2020-2732 (GCVE-0-2020-2732)

Tags

Sightings

Nomenclature