Executive Summary

Informations
Name CVE-2020-2732 First vendor Publication 2020-04-08
Vendor Cve Last vendor Modification 2020-06-10

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Overall CVSS Score 6.8
Base Score 6.8 Environmental Score 6.8
impact SubScore 4 Temporal Score 6.8
Exploitabality Sub Score 2.3
 
Attack Vector Adjacent Attack Complexity Low
Privileges Required Low User Interaction None
Scope Changed Confidentiality Impact High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:A/AC:M/Au:S/C:P/I:N/A:N)
Cvss Base Score 2.3 Attack Range Adjacent network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 4.4 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-2732

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-200 Information Exposure

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 2

Sources (Detail)

Source Url
DEBIAN https://www.debian.org/security/2020/dsa-4667
https://www.debian.org/security/2020/dsa-4698
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1805135
https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec
https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c
https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d
https://linux.oracle.com/errata/ELSA-2020-5540.html
https://linux.oracle.com/errata/ELSA-2020-5542.html
https://linux.oracle.com/errata/ELSA-2020-5543.html
https://www.openwall.com/lists/oss-security/2020/02/25/3
https://www.spinics.net/lists/kvm/msg208259.html
MLIST https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html

Alert History

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Date Informations
2021-05-04 13:51:35
  • Multiple Updates
2021-04-22 03:03:03
  • Multiple Updates
2020-06-11 05:22:48
  • Multiple Updates
2020-06-11 01:28:00
  • Multiple Updates
2020-06-11 01:26:56
  • Multiple Updates
2020-06-10 17:22:55
  • Multiple Updates
2020-06-10 09:23:03
  • Multiple Updates
2020-05-23 02:36:19
  • First insertion