CVE-2022-42327
Fixed in a distro release EPSS <1%CVSS 7.1
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.
Products: xen
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.14 | xen | 4.15.4-r0 |
| Alpine 3.15 | xen | 4.15.4-r0 |
| Alpine 3.17 | xen | 4.16.2-r1 |
| Alpine 3.18 | xen | 4.16.2-r1 |
| Alpine 3.19 | xen | 4.16.2-r1 |
| Alpine 3.20 | xen | 4.16.2-r1 |
| Alpine 3.21 | xen | 4.16.2-r1 |
| Alpine 3.22 | xen | 4.16.2-r1 |
| Alpine 3.23 | xen | 4.16.2-r1 |
| Alpine 3.24 | xen | 4.16.2-r1 |
| Debian 12 | xen | 4.16.2+90-g0d39a6d1ae-1 |
| Debian 13 | xen | 4.16.2+90-g0d39a6d1ae-1 |
| Debian 14 | xen | 4.16.2+90-g0d39a6d1ae-1 |
| SUSE Linux Enterprise Micro 5.3 | xen | 4.16.2_08-150400.4.16.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | xen | 4.16.2_08-150400.4.16.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | xen | 4.16.2_08-150400.4.16.1 |
| Ubuntu 16.04 LTS | xen | no fix |
| Ubuntu 18.04 LTS | xen | no fix |
| Ubuntu 20.04 LTS | xen | no fix |
| Ubuntu 22.04 LTS | xen | no fix |
| Ubuntu 24.04 LTS | xen | no fix |
| Ubuntu 25.10 | xen | no fix |
| Ubuntu 26.04 LTS | xen | no fix |
| Ubuntu 26.10 | xen | no fix |
| openSUSE Leap 15.4 | xen | 4.16.2_08-150400.4.16.1 |