CVE-2022-42319
Fixed in a distro release EPSS <1%
Xenstore: Guests can cause Xenstore to not free temporary memory When working on a request of a guest, xenstored might need to allocate quite large amounts of memory temporarily. This memory is freed only after the request has been finished completely. A request is regarded to be finished only after the guest has read the response message of the request from the ring page. Thus a guest not reading the response can cause xenstored to not free the temporary memory. This can result in memory shortages causing Denial of Service (DoS) of xenstored.
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 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 |