CVE-2022-42335
Fixed in a distro release EPSS <1%
x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.
Products: xen
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.18 | xen | 4.17.0-r5 |
| Alpine 3.19 | xen | 4.17.0-r5 |
| Alpine 3.20 | xen | 4.17.0-r5 |
| Alpine 3.21 | xen | 4.17.0-r5 |
| Alpine 3.22 | xen | 4.17.0-r5 |
| Alpine 3.23 | xen | 4.17.0-r5 |
| Alpine 3.24 | xen | 4.17.0-r5 |
| Debian 12 | xen | 4.17.1+2-gb773c48e36-1 |
| Debian 13 | xen | 4.17.1+2-gb773c48e36-1 |
| Debian 14 | xen | 4.17.1+2-gb773c48e36-1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | xen | 4.17.1_04-150500.3.3.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | xen | 4.17.1_04-150500.3.3.1 |
| 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 15.5 | xen | 4.17.1_04-150500.3.3.1 |
| openSUSE Tumbleweed | xen | 4.17.1_02-1.1 |