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CVE-2020-2732 Detail


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.


CVSS 4.0 Severity and Metrics:

NVD assessment not yet provided.

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1805135 Issue Tracking  Third Party Advisory 
https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec Patch  Third Party Advisory 
https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c Patch  Third Party Advisory 
https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d Patch  Third Party Advisory 
https://linux.oracle.com/errata/ELSA-2020-5540.html Third Party Advisory 
https://linux.oracle.com/errata/ELSA-2020-5542.html Third Party Advisory 
https://linux.oracle.com/errata/ELSA-2020-5543.html Third Party Advisory 
https://www.openwall.com/lists/oss-security/2020/02/25/3 Mailing List  Third Party Advisory 
https://www.spinics.net/lists/kvm/msg208259.html Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
NVD Published Date:
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