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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.
| 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 xenUpgrade xen-tools-xendomains-wait-diskUpgrade xen-doc-htmlUpgrade xen-libsUpgrade xen-tools-domUUpgrade xen-toolsUpgrade xen-libs-32bitUpgrade xen-devel | Nov 17, 2022 | Nov 1, 2022 |
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