CVE-2022-42323
Fixed in a distro release EPSS <1%
Xenstore: Cooperating guests can create arbitrary numbers of nodes T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Since the fix of XSA-322 any Xenstore node owned by a removed domain will be modified to be owned by Dom0. This will allow two malicious guests working together to create an arbitrary number of Xenstore nodes. This is possible by domain A letting domain B write into domain A's local Xenstore tree. Domain B can then create many nodes and reboot. The nodes created by domain B will now be owned by Dom0. By repeating this process over and over again an arbitrary number of nodes can be created, as Dom0's number of nodes isn't limited by Xenstore quota.
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 |