6.7
CVSS 3.0
Няма данни
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Няма потвърждение
Атакува се
Няма данни
Време до експлоатация
Атакува се локално, при специфични условия, с администраторски права и без действие от потребителя.
Описание
Оригинално описание
A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.
Засегнати продукти
- The Linux Foundation Kernel: from 4.16
Вид слабост
История
- 9 април 2019 Публикувано
Други уязвимости в The Linux Foundation Kernel
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2019-3887
- https://nvd.nist.gov/vuln/detail/CVE-2019-3887
- http://www.securityfocus.com/bid/107850
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/
- https://usn.ubuntu.com/3980-1/
- https://usn.ubuntu.com/3979-1/
- https://usn.ubuntu.com/3980-2/
- https://access.redhat.com/errata/RHSA-2019:2703
- https://access.redhat.com/errata/RHSA-2019:2741
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887