CVE-2020-2732

CVSS V2 Low 2.3 CVSS V3 Medium 6.8
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.
Overview
  • CVE ID
  • CVE-2020-2732
  • Assigner
  • secalert_us@oracle.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2020-04-08T22:15:12
  • Last Modified Date
  • 2020-06-10T20:15:14
Weakness Enumerations
CWE URL
CWE-200 http://cwe.mitre.org/data/definitions/200.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:M/Au:S/C:P/I:N/A:N
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 2.3
  • Severity
  • LOW
  • Exploitability Score
  • 4.4
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 6.8
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.3
  • Impact Score
  • 4
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-2732
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-2732
History
Created Old Value New Value Data Type Notes
2022-05-10 17:28:30 Added to TrackCVE
2022-12-04 14:15:15 2020-04-08T22:15Z 2020-04-08T22:15:12 CVE Published Date updated
2022-12-04 14:15:15 2020-06-10T20:15:14 CVE Modified Date updated
2022-12-04 14:15:15 Modified Vulnerability Status updated