** Description changed: When running 64-bit guests in 32-bit Ubuntu 12.04, the host with high probably goes into abrupt reboot sooner or later. There's upstream bug for this: https://www.virtualbox.org/ticket/10528 It reports that the issue was fixed in Virtualbox 4.1.18 . Please consider upgrade for the package in 12.04. Please also consider this as high priority, because abrupt reboots diminishes user experience largely. Thanks. + + [Impact] + This bug could cause a loss of user data: in fact, a crashed session means that all unsaved documents are lost. + + Also, this bug could be a serious security issue: in fact, it can be + used for Denial Of Service attacks: if a server has at least one + unprotected virtual machine (i.e. for test purposes), a malware could + try to launch a 64 bit code to be able to crash not only the virtual + machine (a crash on a test virtual machine does no harm), but the whole + server. This kind of attack could also be unintentional.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1071344 Title: 12.04's current virtualbox 4.1.12 crashes (reboots) 32-bit host on running 64-bit guests, please upgrade to 4.1.18+ To manage notifications about this bug go to: https://bugs.launchpad.net/virtualbox/+bug/1071344/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
