CVE-2020-2732
"KVM Nested Virtualization L2 Guest Privilege Escalation"
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.
INFO
Published Date :
April 8, 2020, 10:15 p.m.
Last Modified :
Nov. 21, 2024, 5:26 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
4.0
Exploitability Score :
2.3
Public PoC/Exploit Available at Github
CVE-2020-2732 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-2732.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Map Vulnerabilities into Different Layers of the Container Image
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-2732 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-2732 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added Reference https://www.debian.org/security/2020/dsa-4698 [No Types Assigned] -
CVE Modified by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html [No Types Assigned] -
CVE Modified by [email protected]
Jun. 10, 2020
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 [email protected]
Apr. 30, 2020
Action Type Old Value New Value Added Reference https://www.debian.org/security/2020/dsa-4667 [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 10, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:M/Au:S/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N 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 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:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-2732 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-2732
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.15147
percentile