The subpage MMIO initialization functionality in the subpage_register function in exec.c in QEMU-KVM, as used in the Hypervisor (aka rhev-hypervisor) in Red Hat Enterprise Virtualization (RHEV) 2.2 and KVM 83, does not properly select the index for access to the callback array, which allows guest OS users to cause a denial of service (guest OS crash) or possibly gain privileges via unspecified vectors.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Enterprise_virtualization | Redhat | 2.2 (including) | 2.2 (including) |
| Kvm | Redhat | 83 (including) | 83 (including) |
| Red Hat Enterprise Linux 5 | RedHat | kvm-0:83-164.el5_5.21 | * |
| Red Hat Enterprise Virtualization for RHEL-5 | RedHat | rhev-hypervisor-0:5.5-2.2.6.1.el5_5rhev2_2 | * |
| Kvm | Ubuntu | hardy | * |
| Kvm | Ubuntu | jaunty | * |
| Qemu-kvm | Ubuntu | devel | * |
| Qemu-kvm | Ubuntu | karmic | * |
| Qemu-kvm | Ubuntu | lucid | * |
References
- http://www.spinics.net/lists/kvm/msg39173.html
- https://bugzilla.redhat.com/show_bug.cgi?id=619411
- https://rhn.redhat.com/errata/RHSA-2010-0622.html
- https://rhn.redhat.com/errata/RHSA-2010-0627.html
- http://www.spinics.net/lists/kvm/msg39173.html
- https://bugzilla.redhat.com/show_bug.cgi?id=619411
- https://rhn.redhat.com/errata/RHSA-2010-0622.html
- https://rhn.redhat.com/errata/RHSA-2010-0627.html