** Description changed: It was found that kvm_vm_ioctl_assign_device function did not check if the user requesting assignment was privileged or not. Together with /dev/kvm being 666, unprivileged user could assign unused pci devices, or even devices that were in use and whose resources were not properly claimed by the respective drivers. Please note that privileged access was still needed to re-program the device to for example issue DMA requests. This is typically achieved by touching files on sysfs filesystem. These files are usually not accessible to unprivileged users. As a result, local user could use this flaw to crash the system. - Break-Fix: 4d5c5d0fe89c921336b95f5e7e4f529a9df92f53 - 3d27e23b17010c668db311140b17bbbb70c78fb9 + Break-Fix: 4d5c5d0fe89c921336b95f5e7e4f529a9df92f53 3d27e23b17010c668db311140b17bbbb70c78fb9 + Break-Fix: 4d5c5d0fe89c921336b95f5e7e4f529a9df92f53 423873736b78f549fbfa2f715f2e4de7e6c5e1e9
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/897812 Title: CVE-2011-4347 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/897812/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
