The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.16.1 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to (1) cause a denial of service (host OS memory corruption) or possibly have unspecified other impact by triggering a large gfn value or (2) cause a denial of service (host OS memory consumption) by triggering a small gfn value that leads to permanently pinned pages.
2014-09-01T01:55:18.250
2025-04-12T10:46:40.837
Deferred
CVSSv2: 4.3 (MEDIUM)
AV:A/AC:H/Au:S/C:N/I:N/A:C
2.5
6.9
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Application | suse | linux_enterprise_real_time_extension | 11.0 | Yes |
Operating System | opensuse | evergreen | 11.4 | Yes |
Operating System | suse | linux_enterprise_server | 11 | Yes |
Operating System | suse | suse_linux_enterprise_server | 11 | Yes |
Operating System | canonical | ubuntu_linux | 12.04 | Yes |
Operating System | canonical | ubuntu_linux | 14.04 | Yes |
Operating System | linux | linux_kernel | ≤ 3.16.1 | Yes |
Operating System | linux | linux_kernel | 3.16.0 | Yes |