CVE-2019-3887
KVM Nested Virtualization x2APIC MSR Access Denial of Service
Description
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.
INFO
Published Date :
April 9, 2019, 4:29 p.m.
Last Modified :
Feb. 12, 2023, 11:38 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
4.0
Exploitability Score :
1.1
Affected Products
The following products are affected by CVE-2019-3887
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-3887.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/107850 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2019:2703 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2019:2741 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887 | Issue Tracking Patch Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/ | |
| https://usn.ubuntu.com/3979-1/ | Third Party Advisory |
| https://usn.ubuntu.com/3980-1/ | Third Party Advisory |
| https://usn.ubuntu.com/3980-2/ | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-3887 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-3887 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value Changed Description A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Register (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. 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. Removed Reference https://access.redhat.com/security/cve/CVE-2019-3887 [No Types Assigned] Removed Reference https://bugzilla.redhat.com/show_bug.cgi?id=1695044 [No Types Assigned] Added CWE Red Hat, Inc. CWE-863 -
CVE Modified by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Changed Description 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. A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Register (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. Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/ [Mailing List, Third Party Advisory] Added Reference https://access.redhat.com/security/cve/CVE-2019-3887 [No Types Assigned] Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1695044 [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/ [No Types Assigned] Removed CWE Red Hat, Inc. CWE-863 -
Modified Analysis by [email protected]
Nov. 07, 2022
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 07, 2022
Action Type Old Value New Value Removed CWE Red Hat, Inc. CWE-284 Added CWE Red Hat, Inc. CWE-863 Removed CWE Reason CWE-284 / More specific CWE option available -
Modified Analysis by [email protected]
Nov. 02, 2021
Action Type Old Value New Value Removed CVSS V3 NIST AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H Changed Reference Type https://access.redhat.com/errata/RHSA-2019:2703 No Types Assigned https://access.redhat.com/errata/RHSA-2019:2703 Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2019:2741 No Types Assigned https://access.redhat.com/errata/RHSA-2019:2741 Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/ Mailing List, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3979-1/ No Types Assigned https://usn.ubuntu.com/3979-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3980-1/ No Types Assigned https://usn.ubuntu.com/3980-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3980-2/ No Types Assigned https://usn.ubuntu.com/3980-2/ Third Party Advisory Removed CWE NIST CWE-20 Added CWE NIST CWE-863 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time:8:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CVSS V3 Red Hat, Inc. AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H Added CWE Red Hat, Inc. CWE-284 -
CVE Modified by [email protected]
Sep. 11, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:2741 [No Types Assigned] -
CVE Modified by [email protected]
Sep. 10, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:2703 [No Types Assigned] -
CVE Modified by [email protected]
May. 21, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3980-2/ [No Types Assigned] -
CVE Modified by [email protected]
May. 14, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3980-1/ [No Types Assigned] Added Reference https://usn.ubuntu.com/3979-1/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 15, 2019
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/IWPOIII2L73HV5PGXSGMRMKQIK47UIYE/ [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 10, 2019
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:M/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H Changed Reference Type http://www.securityfocus.com/bid/107850 No Types Assigned http://www.securityfocus.com/bid/107850 Third Party Advisory, VDB Entry Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3887 Issue Tracking, Patch, Third Party Advisory Added CWE CWE-20 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.16 -
CVE Modified by [email protected]
Apr. 10, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/107850 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-3887 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-3887
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.01%
score
0.18665
percentile