Edition VirtualBox 6.1.20

Company Oracle Posted Corrective Release Virtualization System VirtualBox 6.1.20 , which marked 22 corrections . The list of changes clearly does not indicate the elimination of 20 vulnerabilities, which the company Oracle reported separately , but without detail Information. It is only known that the three most dangerous problems have a hazard level 8.1, 8.2 and 8.4 (probably allow access to the host system from the virtual machine), and one of the problems allows a remote attack through manipulation with the RDP protocol.

Main changes:

  • For guest systems and hosts with Linux added support for Linux 5.11 and 5.12.
  • In additions for guest systems when using Linux 4.10+ cores for network adapters in Host-only mode, up to 16110 increased maximum size MTU.
  • In additions for guest systems, a problem with the assembly of the VboxVideo module for Linux cores 5.10.x is eliminated.
  • In additions for guest systems, support for assembling kernel modules in Rhel 8.4-beta distributions and CentOS Stream is provided.
  • VboxManage is allowed to use the “modifyvm” command to change the network adapter attachment to the saved virtual machine.
  • in the Virtual Machine Manager (VMM) The problem with the performance is eliminated, problems with the processing of guest systems in the presence of Hyper-V hypervisor, corrected error when using nested virtualization.
  • eliminated with SMAP (Supervisor Mode Access Prevention) collapse of host systems, manifested by Solaris 11.4 on systems with Intel Haswell processors and newer.
  • In Components for Integration with OCI (Oracle Cloud Infrastructure) Added the ability to use Cloud-Init to export to OCI and to create instances of environments in OCI.
  • GUI solved the problem with leaving the logs / vboxui.log log when performing a removal operation of all files (“Delete All Files”).
  • Support Sound Support.
  • Informing the status of the networking for adapters in the “Not Attached” state.
  • solved problems with network connections when using the E1000 virtual network adapter in guest systems with OS / 2.
  • enhanced E1000 driver compatibility with VXWORKS.
  • GUI solved problems with checking the rules of port redirection (the rules with IPv6 were not accepted).
  • Eliminated the collapse of DHCP when Prepare Fixed Address Settings.
  • eliminated virtual machine hangs when using a serial port in disconnected mode.
  • enhanced driver compatibility for Web cameras with V4L2loopback.
  • eliminated random hangs or reboot virtual machines with Windows that use the NVME virtual driver.
  • In Vboximg-mount, support is “–root ‘option.
/Media reports.