CVE-2022-33747
Fixed in a distro release EPSS <1%
Arm: unbounded memory consumption for 2nd-level page tables Certain actions require e.g. removing pages from a guest's P2M (Physical-to-Machine) mapping. When large pages are in use to map guest pages in the 2nd-stage page tables, such a removal operation may incur a memory allocation (to replace a large mapping with individual smaller ones). These memory allocations are taken from the global memory pool. A malicious guest might be able to cause the global memory pool to be exhausted by manipulating its own P2M mappings.
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 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 |
| 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 |