VDB
CVE-2019-3887
CVE-2019-3887
PUBLISHED
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.
EPSS 0.03% · 10.9th percentile
Risk Scores
EPSS Score
0.03%
10.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | linux-hwe | *, 0, 4.18.0-13.14~18.04.1 |
| Ubuntu:18.04:LTS | linux-gcp-edge | 0, *, 4.18.0-1006.7~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure | 4.15.0-1028.29, 4.15.0-1030.31, 4.15.0-1031.32 |
Timeline
- Apr 9, 2019 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2019-3887 third-party-advisory
- https://www.openwall.com/lists/oss-security/2019/04/08/1 third-party-advisory
- https://ubuntu.com/security/notices/USN-3979-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-3980-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-3980-2 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-3887 third-party-advisory