Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Published

2020-04-08T22:15:12.263

Last Modified

2024-11-21T05:26:06.910

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.8 (MEDIUM)

CVSSv2 Vector

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

Access Vector: ADJACENT_NETWORK
Access Complexity: MEDIUM
Authentication: SINGLE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

4.4

Impact Score

2.9

Weaknesses

Type: Primary
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	redhat	enterprise_linux	7.0	Yes
Operating System	redhat	enterprise_linux	8.0	Yes

References

https://bugzilla.redhat.com/show_bug.cgi?id=1805135 Issue Tracking, Third Party Advisory ([email protected])
https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec Patch, Third Party Advisory ([email protected])
https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c Patch, Third Party Advisory ([email protected])
https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d Patch, Third Party Advisory ([email protected])
https://linux.oracle.com/errata/ELSA-2020-5540.html Third Party Advisory ([email protected])
https://linux.oracle.com/errata/ELSA-2020-5542.html Third Party Advisory ([email protected])
https://linux.oracle.com/errata/ELSA-2020-5543.html Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html ([email protected])
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html ([email protected])
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html ([email protected])
https://www.debian.org/security/2020/dsa-4667 ([email protected])
https://www.debian.org/security/2020/dsa-4698 ([email protected])
https://www.openwall.com/lists/oss-security/2020/02/25/3 Mailing List, Third Party Advisory ([email protected])
https://www.spinics.net/lists/kvm/msg208259.html Patch, Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1805135 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://linux.oracle.com/errata/ELSA-2020-5540.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://linux.oracle.com/errata/ELSA-2020-5542.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://linux.oracle.com/errata/ELSA-2020-5543.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2020/dsa-4667 (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2020/dsa-4698 (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2020/02/25/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.spinics.net/lists/kvm/msg208259.html Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)