An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorrect fix for CVE-2017-15595.
Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B’s state.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Xen | Xen | 4.11.0 (including) | 4.11.1 (including) |
| Xen | Ubuntu | bionic | * |
| Xen | Ubuntu | cosmic | * |
| Xen | Ubuntu | disco | * |
| Xen | Ubuntu | eoan | * |
| Xen | Ubuntu | esm-infra/bionic | * |
| Xen | Ubuntu | esm-infra/xenial | * |
| Xen | Ubuntu | groovy | * |
| Xen | Ubuntu | hirsute | * |
| Xen | Ubuntu | impish | * |
| Xen | Ubuntu | trusty | * |
| Xen | Ubuntu | upstream | * |
| Xen | Ubuntu | xenial | * |