x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist between two guests.
CVSS Details
- CVSS 3.1 Base Score: 7.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade xen | Mar 26, 2024 | Nov 1, 2022 |
| Debian | — | Upgrade xen | Jul 30, 2024 | Nov 1, 2022 |
| Gentoo Linux | — | Upgrade app-emulation/xen. | Feb 5, 2024 | Nov 1, 2022 |
| Suse | — | Upgrade xen-libs-32bitUpgrade xen-toolsUpgrade xen-develUpgrade xen-libsUpgrade xenUpgrade xen-tools-domUUpgrade xen-tools-xendomains-wait-diskUpgrade xen-doc-html | Nov 17, 2022 | Nov 1, 2022 |
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