CVE-2020-2732
Detail
Modified After Enrichment This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
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.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS 2.0 Severity and Vector Strings:
Vector:
(AV:A/AC:M/Au:S/C:P/I:N/A:N)
References to Advisories, Solutions, and Tools
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URL
Source(s)
Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=1805135
CVE, Oracle
Issue Tracking
Third Party Advisory
https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec
CVE, Oracle
Patch
Third Party Advisory
https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c
CVE, Oracle
Patch
Third Party Advisory
https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d
CVE, Oracle
Patch
Third Party Advisory
https://linux.oracle.com/errata/ELSA-2020-5540.html
CVE, Oracle
Third Party Advisory
https://linux.oracle.com/errata/ELSA-2020-5542.html
CVE, Oracle
Third Party Advisory
https://linux.oracle.com/errata/ELSA-2020-5543.html
CVE, Oracle
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
CVE, Oracle
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
CVE, Oracle
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
CVE, Oracle
https://www.debian.org/security/2020/dsa-4667
CVE, Oracle
https://www.debian.org/security/2020/dsa-4698
CVE, Oracle
https://www.openwall.com/lists/oss-security/2020/02/25/3
CVE, Oracle
Mailing List
Third Party Advisory
https://www.spinics.net/lists/kvm/msg208259.html
CVE, Oracle
Patch
Third Party Advisory
Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
NIST
Change History
9 change records found show changes
CVE Modified by CISA-ADP
6/16/2026 11:12:46 PM
Action
Type
Old Value
New Value
Added
SSVC
{"timestamp":"2024-09-30T15:00:48.809812Z","id":"CVE-2020-2732","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}
CVE Modified by Oracle
6/16/2026 11:12:46 PM
Action
Type
Old Value
New Value
Added
Affected
[{"vendor":"Oracle Corporation","product":"Oracle Linux","versions":[{"version":"7","status":"affected"},{"version":"6","status":"affected"}]}]
CVE Modified by CVE
11/21/2024 12:26:06 AM
Action
Type
Old Value
New Value
Added
Reference
https://bugzilla.redhat.com/show_bug.cgi?id=1805135
Added
Reference
https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec
Added
Reference
https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c
Added
Reference
https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d
Added
Reference
https://linux.oracle.com/errata/ELSA-2020-5540.html
Added
Reference
https://linux.oracle.com/errata/ELSA-2020-5542.html
Added
Reference
https://linux.oracle.com/errata/ELSA-2020-5543.html
Added
Reference
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
Added
Reference
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
Added
Reference
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
Added
Reference
https://www.debian.org/security/2020/dsa-4667
Added
Reference
https://www.debian.org/security/2020/dsa-4698
Added
Reference
https://www.openwall.com/lists/oss-security/2020/02/25/3
Added
Reference
https://www.spinics.net/lists/kvm/msg208259.html
CVE Modified by Oracle
5/14/2024 3:02:40 AM
Action
Type
Old Value
New Value
CVE Modified by Oracle
6/10/2020 4:15:14 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.debian.org/security/2020/dsa-4698 [No Types Assigned]
CVE Modified by Oracle
6/10/2020 9:15:16 AM
Action
Type
Old Value
New Value
Added
Reference
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html [No Types Assigned]
Added
Reference
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html [No Types Assigned]
CVE Modified by Oracle
6/09/2020 8:15:15 PM
Action
Type
Old Value
New Value
Added
Reference
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html [No Types Assigned]
CVE Modified by Oracle
4/29/2020 8:15:11 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.debian.org/security/2020/dsa-4667 [No Types Assigned]
Initial Analysis by NIST
4/10/2020 4:09:26 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Added
CVSS V2
NIST (AV:A/AC:M/Au:S/C:P/I:N/A:N)
Added
CWE
NIST CWE-200
Added
CPE Configuration
OR
*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Changed
Reference Type
https://bugzilla.redhat.com/show_bug.cgi?id=1805135 No Types Assigned
https://bugzilla.redhat.com/show_bug.cgi?id=1805135 Issue Tracking, Third Party Advisory
Changed
Reference Type
https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec No Types Assigned
https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec Patch, Third Party Advisory
Changed
Reference Type
https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c No Types Assigned
https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c Patch, Third Party Advisory
Changed
Reference Type
https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d No Types Assigned
https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d Patch, Third Party Advisory
Changed
Reference Type
https://linux.oracle.com/errata/ELSA-2020-5540.html No Types Assigned
https://linux.oracle.com/errata/ELSA-2020-5540.html Third Party Advisory
Changed
Reference Type
https://linux.oracle.com/errata/ELSA-2020-5542.html No Types Assigned
https://linux.oracle.com/errata/ELSA-2020-5542.html Third Party Advisory
Changed
Reference Type
https://linux.oracle.com/errata/ELSA-2020-5543.html No Types Assigned
https://linux.oracle.com/errata/ELSA-2020-5543.html Third Party Advisory
Changed
Reference Type
https://www.openwall.com/lists/oss-security/2020/02/25/3 No Types Assigned
https://www.openwall.com/lists/oss-security/2020/02/25/3 Mailing List, Third Party Advisory
Changed
Reference Type
https://www.spinics.net/lists/kvm/msg208259.html No Types Assigned
https://www.spinics.net/lists/kvm/msg208259.html Patch, Third Party Advisory
Quick Info
CVE Dictionary Entry: CVE-2020-2732 NVD
Published Date: 04/08/2020 NVD
Last Modified: 06/16/2026
Source: Oracle
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