The compat_iret function in Xen 3.1 through 4.5 iterates the wrong way through a loop, which allows local 32-bit PV guest administrators to cause a denial of service (large loop and system hang) via a hypercall_iret call with EFLAGS.VM set.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Xen | Xen | 3.2.0 | 3.2.0 |
Xen | Xen | 4.1.5 | 4.1.5 |
Xen | Xen | 3.2.1 | 3.2.1 |
Xen | Xen | 4.2.2 | 4.2.2 |
Xen | Xen | 4.2.3 | 4.2.3 |
Xen | Xen | 3.4.0 | 3.4.0 |
Xen | Xen | 4.3.0 | 4.3.0 |
Xen | Xen | 4.0.4 | 4.0.4 |
Xen | Xen | 4.0.2 | 4.0.2 |
Xen | Xen | 3.3.2 | 3.3.2 |
Xen | Xen | 4.1.2 | 4.1.2 |
Xen | Xen | 3.2.2 | 3.2.2 |
Xen | Xen | 3.4.4 | 3.4.4 |
Xen | Xen | 4.0.0 | 4.0.0 |
Xen | Xen | 4.4.0 | 4.4.0 |
Xen | Xen | 4.1.1 | 4.1.1 |
Xen | Xen | 4.2.0 | 4.2.0 |
Xen | Xen | 4.1.0 | 4.1.0 |
Xen | Xen | 3.4.3 | 3.4.3 |
Xen | Xen | 4.4.1 | 4.4.1 |
Xen | Xen | 4.1.3 | 4.1.3 |
Xen | Xen | 3.2.3 | 3.2.3 |
Xen | Xen | 4.1.6.1 | 4.1.6.1 |
Xen | Xen | 4.3.4 | 4.3.4 |
Xen | Xen | 3.3.1 | 3.3.1 |
Xen | Xen | 3.4.2 | 3.4.2 |
Xen | Xen | 4.1.4 | 4.1.4 |
Xen | Xen | 3.4.1 | 3.4.1 |
Xen | Xen | 3.1.4 | 3.1.4 |
Xen | Xen | 4.3.1 | 4.3.1 |
Xen | Xen | 3.3.0 | 3.3.0 |
Xen | Xen | 4.2.1 | 4.2.1 |
Xen | Xen | 4.5.0 | 4.5.0 |
Xen | Xen | 3.1.3 | 3.1.3 |
Xen | Xen | 4.4.0 | 4.4.0 |
Xen | Xen | 4.0.1 | 4.0.1 |
Xen | Xen | 4.0.3 | 4.0.3 |