Detections
Analytics
CVE-2020-2732
medium
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.
References
https://www.spinics.net/lists/kvm/msg208259.html
https://www.openwall.com/lists/oss-security/2020/02/25/3
https://www.debian.org/security/2020/dsa-4698
https://www.debian.org/security/2020/dsa-4667
https://linux.oracle.com/errata/ELSA-2020-5543.html
https://linux.oracle.com/errata/ELSA-2020-5542.html
https://linux.oracle.com/errata/ELSA-2020-5540.html
https://git.kernel.org/linus/e71237d3ff1abf9f3388337cfebf53b96df2020d
https://git.kernel.org/linus/35a571346a94fb93b5b3b6a599675ef3384bc75c
https://git.kernel.org/linus/07721feee46b4b248402133228235318199b05ec