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Status published
Medium
CVE-2020-2732
A flaw was discovered in the way that the KVM...
Vulnerability Description
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 Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://www.openwall.com/lists/oss-security/2020/02/25/3
- https://www.spinics.net/lists/kvm/msg208259.html
- https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec
- https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c
- https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d
- https://bugzilla.redhat.com/show_bug.cgi?id=1805135
- 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://www.debian.org/security/2020/dsa-4667
- 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-4698
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Affected Vendor
Oracle Corporation
View all reports →Affected Software
Oracle Linux
Vulnerable Versions:
7, 6
Timeline
Official Publish:
April 8th, 2020
Last Modified:
September 30th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.