National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2020-2732 Detail

Current 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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 6.8 MEDIUM
Vector:  CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Nist CVSS score does not match with CNA score
CNA:  Oracle
Base Score: 5.8 MEDIUM
Vector:  CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

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.debian.org/security/2020/dsa-4667
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 NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-2732
NVD Published Date:
04/08/2020
NVD Last Modified:
04/29/2020