CVE-2022-42320
Fixed in a distro release EPSS <1%
Xenstore: Guests can get access to Xenstore nodes of deleted domains Access rights of Xenstore nodes are per domid. When a domain is gone, there might be Xenstore nodes left with access rights containing the domid of the removed domain. This is normally no problem, as those access right entries will be corrected when such a node is written later. There is a small time window when a new domain is created, where the access rights of a past domain with the same domid as the new one will be regarded to be still valid, leading to the new domain being able to get access to a node which was meant to be accessible by the removed domain. For this to happen another domain needs to write the node before the newly created domain is being introduced to Xenstore by dom0.
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 3.16 | xen | 4.16.3-r0 |
| Alpine 3.17 | xen | 4.16.3-r0 |
| Alpine 3.18 | xen | 4.17.0-r0 |
| Alpine 3.19 | xen | 4.17.0-r0 |
| Alpine 3.20 | xen | 4.17.0-r0 |
| Alpine 3.21 | xen | 4.17.0-r0 |
| Alpine 3.22 | xen | 4.17.0-r0 |
| Alpine 3.23 | xen | 4.17.0-r0 |
| Alpine 3.24 | xen | 4.17.0-r0 |
| Debian 11 | xen | 4.14.5+86-g1c354767d5-1 |
| 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 Enterprise Storage 6 | xen | 4.12.4_30-150100.3.80.1 |
| SUSE Enterprise Storage 7 | xen | 4.13.4_16-150200.3.65.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | xen | 4.12.4_30-150100.3.80.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | xen | 4.12.4_30-150100.3.80.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | xen | 4.13.4_16-150200.3.65.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | xen | 4.13.4_16-150200.3.65.1 |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | xen | 4.10.4_40-150000.3.84.1 |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | xen | 4.10.4_40-150000.3.84.1 |
| SUSE Linux Enterprise Micro 5.1 | xen | 4.14.5_08-150300.3.40.1 |
| SUSE Linux Enterprise Micro 5.2 | xen | 4.14.5_08-150300.3.40.1 |
| SUSE Linux Enterprise Micro 5.3 | xen | 4.16.2_08-150400.4.16.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | xen | 4.14.5_08-150300.3.40.1 |
| 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 SP3 | xen | 4.14.5_08-150300.3.40.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | xen | 4.16.2_08-150400.4.16.1 |
| SUSE Linux Enterprise Server 12 SP2-BCL | xen | 4.7.6_28-43.98.1 |
| SUSE Linux Enterprise Server 12 SP3-BCL | xen | 4.9.4_34-3.114.1 |
| SUSE Linux Enterprise Server 12 SP4-LTSS | xen | 4.11.4_34-2.83.1 |
| SUSE Linux Enterprise Server 12 SP5 | xen | 4.12.4_30-3.82.1 |
| SUSE Linux Enterprise Server 15 SP1-BCL | xen | 4.12.4_30-150100.3.80.1 |
| SUSE Linux Enterprise Server 15 SP1-LTSS | xen | 4.12.4_30-150100.3.80.1 |
| SUSE Linux Enterprise Server 15 SP2-BCL | xen | 4.13.4_16-150200.3.65.1 |
| SUSE Linux Enterprise Server 15 SP2-LTSS | xen | 4.13.4_16-150200.3.65.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | xen | 4.11.4_34-2.83.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | xen | 4.12.4_30-3.82.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 | xen | 4.10.4_40-150000.3.84.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | xen | 4.12.4_30-150100.3.80.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | xen | 4.13.4_16-150200.3.65.1 |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | xen | 4.12.4_30-3.82.1 |
| SUSE Manager Proxy 4.1 | xen | 4.13.4_16-150200.3.65.1 |
| SUSE Manager Retail Branch Server 4.1 | xen | 4.13.4_16-150200.3.65.1 |
| SUSE Manager Server 4.1 | xen | 4.13.4_16-150200.3.65.1 |
| SUSE OpenStack Cloud 9 | xen | 4.11.4_34-2.83.1 |
| SUSE OpenStack Cloud Crowbar 9 | xen | 4.11.4_34-2.83.1 |
| 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 15.3 | xen | 4.14.5_08-150300.3.40.1 |
| openSUSE Leap 15.4 | xen | 4.16.2_08-150400.4.16.1 |
| openSUSE Leap Micro 5.2 | xen | 4.14.5_08-150300.3.40.1 |