ALT-PU-2019-1664-1
Package kernel-image-std-pae updated to version 4.19.35-alt1 for branch sisyphus in task 227288.
Closed vulnerabilities
Published: 2019-04-05
BDU:2019-02958
Уязвимость подсистемы виртуализации Kernel-based Virtual Machine (KVM) ядра операционных систем Linux, позволяющая нарушителю вызвать отказ в обслуживании
Severity: MEDIUM (5.6)
Vector: AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Severity: MEDIUM (4.4)
Vector: AV:L/AC:M/Au:S/C:N/I:N/A:C
References:
Published: 2019-04-09
Modified: 2024-11-21
Modified: 2024-11-21
CVE-2019-3887
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.
Severity: MEDIUM (4.7)
Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C
Severity: MEDIUM (5.6)
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
References:
- http://www.securityfocus.com/bid/107850
- 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
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/
- https://usn.ubuntu.com/3979-1/
- https://usn.ubuntu.com/3980-1/
- https://usn.ubuntu.com/3980-2/
- http://www.securityfocus.com/bid/107850
- 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
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/
- https://usn.ubuntu.com/3979-1/
- https://usn.ubuntu.com/3980-1/
- https://usn.ubuntu.com/3980-2/