VirtualBox 5.1.16.113841 has been released

[Bot]

Released: VirtualBox 5.1.16.113841

Changelog:
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• VMM: don't access the MSR_IA32_SMM_MONITOR_CTL MSR if dual-monitor treatment is not available (KVM workaround, bug #14965)
• VMM: another fix for handling certain MSRs on ancient CPUs without VT-x support for MSR bitmaps
• VMM: fixed VERR_SSM_LOAD_CPUID_MISMATCH errors when restoring a saved state with SMP guests on hosts without the CPUID/HTT bit set (bug #16428)
• VMM: fixed a bug in call gate emulation
• VMM: FWAIT instruction fix
• VMM: fixed a sporadic guest hang under certain conditions
• GUI: hide the mini-toolbar from the taskbar and the pager on certain X11 hosts
• GUI: better error handling on the global settings / network / host-only / DHCP server settings
• GUI: fixes for full-screen with multiple screens
• Host-only Network: fixed host-only adapter creation issue preventing VirtualBox installation on Windows 10 hosts (bug #16379)
• NAT network: fixed two potential crashes in the DHCP server
• ICH9: fixed incorrect initialization of the primary bus for PCI bridges (5.1.14 regression)
• Storage: LsiLogic fix for Windows 10
• USB: fixed not being able to attach certain USB devices having invalid characters in the device strings (5.0.18 regression; bug ... (closed: fixed)" style="text-decoration: line-through; color: rgb(0, 0, 192); border-bottom: none;">#15956)
• USB: several fixes for the USB/IP support (bug ... (closed: fixed)" style="text-decoration: line-through; color: rgb(0, 0, 192); border-bottom: none;">#16462)
• VBoxSVC: fixed another crash during shutdown under rare circumstances
• VBoxSVC: fixed a stack overflow on (Windows debug builds only; bug #16409)
• OVF: when importing an appliance handle more than 10 network adapters if the OVA was created by VirtualBox (bug #16401)
• OVF: fixes for exporting and importing appliances with many disks (bug #16402)
• VBoxManage: fixed regression with modifyhd --resize (bug #16311)
• rdesktop-vrdp: source code tarball fixes
• Linux Installers: do not rebuild kernel modules unnecessarily (bug presumed fixed in ... (closed: fixed)" style="text-decoration: line-through; color: rgb(0, 0, 192); border-bottom: none;">#16408)
• Linux hosts: added an action for opening the VM manager window to the .desktop file
• Linux hosts / guests: Linux 4.11 compile fixes (bug #16506)
• Linux Additions: added vboxsf FS modules alias (bug #16404)
• Linux Additions: fix for the shared folders kernel module to compile on Linux 4.10
• Linux Additions: properly install the Linux kernel module override rule on distributions without /etc/depmod.d
• Windows Additions: fixed a crash with recent Windows 10 builds if 3D is disabled (bug #15973)

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Source: Changelog – Oracle VM VirtualBox
Download: Oracle VM VirtualBox

 

[Winter Soldier]

VBoxSVC: fixed a stack overflow on (Windows debug builds only; bug #16409)

One of the most widely spread examples of buffer overflow is the stack overflow. In particular, a stack is a region of memory that is managed as a queue Last Input – First Output, where push and pop are the only permitted operations.
The occurrence of this type of anomaly is in any way encouraged by the fact that in many architectures (such as x86), the memory is allocated in one direction, while the stack is filled in the opposite direction.

Briefly, the stack field is overwritten and an address will be saved.
This address may point to a memory location where malicious code is present, then this could allow for a possible attaccker to get control of the remote system.

Important fix, especially for a virtual machine.

 

[shmu26]

Question from a Virtual Box noob: can I run windows XP x86 (guest) on windows 10 x64 (host), in seamless mode?

I presently do this with the VMware Workstation free player. (They call it Unity mode).
Would there be any advantage to switching to VB?
I understand that the VM hard disk format is compatible with VB, so I could use my existing virtual hard disks.