CVE-2020-2732
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-2732
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-2732.html
Vendor advisory: arch — https://security.archlinux.org/ASA-202003-6
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 5.5.7.arch1-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 5.5.13-1 |
| debian | bullseye | fixed | 5.5.13-1 |
| debian | forky | fixed | 5.5.13-1 |
| debian | sid | fixed | 5.5.13-1 |
| debian | trixie | fixed | 5.5.13-1 |
References
Verify integrity in audit chain (admin only). AS-IS.