The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and previous versions uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
xen xen 4.1.0 |
||
xen xen 4.1.1 |
||
citrix xenserver 5.5 |
||
citrix xenserver 5.0 |
||
citrix xenserver 5.6 |
||
citrix xenserver |
||
citrix xenserver 6.0 |
||
xen xen 4.1.2 |
||
xen xen 4.1.3 |
Vulmon