GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.
2015-06-15T15:59:12.413
2025-04-12T10:46:40.837
Deferred
CVSSv2: 4.9 (MEDIUM)
AV:L/AC:L/Au:N/C:N/I:N/A:C
3.9
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | xen | xen | 4.2.0 | Yes |
| Operating System | xen | xen | 4.2.1 | Yes |
| Operating System | xen | xen | 4.2.2 | Yes |
| Operating System | xen | xen | 4.2.3 | Yes |
| Operating System | xen | xen | 4.3.0 | Yes |
| Operating System | xen | xen | 4.3.1 | Yes |
| Operating System | xen | xen | 4.3.4 | Yes |
| Operating System | xen | xen | 4.4.0 | Yes |
| Operating System | xen | xen | 4.4.0 | Yes |
| Operating System | xen | xen | 4.4.1 | Yes |
| Operating System | xen | xen | 4.5.0 | Yes |