USN-5072-1: linux-azure-5.8 Ubuntu
Vulnerability summary
USN-5072-1 is a vulnerability in linux-azure-5.8 Ubuntu with no CVSS score yet.
No CVSS vector published; no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 2 · Downstream 0 · Related 2Timeline
- 08-09-2021PublishedVulnerability first disclosed.
- 03-06-2026Last modifiedVulnerability information updated.
Description
linux-azure-5.8, linux-oem-5.10 vulnerabilities Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory. (CVE-2021-3656) Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory. (CVE-2021-3653)
CVSS metrics
Risk metrics not yet published.
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: not stated in public data.
Ubuntu2 products
- linux-azure-5.8< 5.8.0-1041.44~20.04.1
- linux-oem-5.10< 5.10.0-1045.47
1 vendor · 2 products