CVE-2020-2732

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 v3.0 6.8 MEDIUM
CVSS v2.0 2.3 LOW

6.8^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 4.0

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

2.3^/10

CVSS v2.0 : LOW

Vector : AV:A/AC:M/Au:S/C:P/I:N/A:N

Exploitability : 4.4 / Impact : 2.9

Access Vector ADJACENT_NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://www.spinics.net/lists/kvm/msg208259.html	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://www.openwall.com/lists/oss-security/2020/02/25/3	Mailing List Third Party Advisory
https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c	Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1805135	Issue Tracking Third Party Advisory
https://linux.oracle.com/errata/ELSA-2020-5543.html	Third Party Advisory
https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec	Patch Third Party Advisory
https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d	Patch Third Party Advisory
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/msg00013.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
https://www.debian.org/security/2020/dsa-4698

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*

Information

Published : 2020-04-08 15:15

Updated : 2020-06-10 13:15

NVD link : CVE-2020-2732

Mitre link : CVE-2020-2732

JSON object : View

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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Products Affected

redhat

enterprise_linux

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