(RHSA-2011:1615) Low: virt-v2v security and bug fix update

ID RHSA-2011:1615
Type redhat
Reporter RedHat
Modified 2018-06-06T20:24:13


virt-v2v is a tool for converting and importing virtual machines to libvirt-managed KVM (Kernel-based Virtual Machine), or Red Hat Enterprise Virtualization.

Using virt-v2v to convert a guest that has a password-protected VNC console to a KVM guest removed that password protection from the converted guest: after conversion, a password was not required to access the converted guest's VNC console. Now, converted guests will require the same VNC console password as the original guest. Note that when converting a guest to run on Red Hat Enterprise Virtualization, virt-v2v will display a warning that VNC passwords are not supported. (CVE-2011-1773)

Note: The Red Hat Enterprise Linux 6.2 perl-Sys-Virt update must also be installed to correct CVE-2011-1773.

Bug fixes:

  • When converting a guest virtual machine (VM), whose name contained certain characters, virt-v2v would create a converted guest with a corrupted name. Now, virt-v2v will not corrupt guest names. (BZ#665883)

  • There were numerous usability issues when running virt-v2v as a non-root user. This update makes it simpler to run virt-v2v as a non-root user. (BZ#671094)

  • virt-v2v failed to convert a Microsoft Windows guest with Windows Recovery Console installed in a separate partition. Now, virt-v2v will successfully convert a guest with Windows Recovery Console installed in a separate partition by ignoring that partition. (BZ#673066)

  • virt-v2v failed to convert a Red Hat Enterprise Linux guest which did not have the symlink "/boot/grub/menu.lst". With this update, virt-v2v can select a grub configuration file from several places. (BZ#694364)

  • This update removes information about the usage of deprecated command line options in the virt-v2v man page. (BZ#694370)

  • virt-v2v would fail to correctly change the allocation policy, (sparse or preallocated) when converting a guest with QCOW2 image format. The error message "Cannot import VM, The selected disk configuration is not supported" was displayed. With this update, allocation policy changes to a guest with QCOW2 storage will work correctly. (BZ#696089)

  • The options "--network" and "--bridge" can not be used in conjunction when converting a guest, but no error message was displayed. With this update, virt-v2v will now display an error message if the mutually exclusive "--network" and "--bridge" command line options are both specified. (BZ#700759)

  • virt-v2v failed to convert a multi-boot guest, and did not clean up temporary storage and mount points after failure. With this update, virt-v2v will prompt for which operating system to convert from a multi-boot guest, and will correctly clean up if the process fails. (BZ#702007)

  • virt-v2v failed to correctly configure modprobe aliases when converting a VMware ESX guest with VMware Tools installed. With this update, modprobe aliases will be correctly configured. (BZ#707261)

  • When converting a guest with preallocated raw storage using the libvirtxml input method, virt-v2v failed with the erroneous error message "size(X) < usage(Y)". This update removes this erroneous error. (BZ#727489)

  • When converting a Red Hat Enterprise Linux guest, virt-v2v did not check that the Cirrus X driver was available before configuring it. With this update, virt-v2v will attempt to install the Cirrus X driver if it is required. (BZ#708961)

  • VirtIO systems do not support the Windows Recovery Console on 32-bit Windows XP. The virt-v2v man page has been updated to note this. On Windows XP Professional x64 Edition, however, if Windows Recovery Console is re-installed after conversion, it will work as expected. (BZ#732421)

  • Placing comments in the guest fstab file by means of the leading "#" symbol caused an "unknown filesystem" error after conversion of a guest. With this update comments can now be used and error messages will not be displayed. (BZ#677870)

Users of virt-v2v should upgrade to this updated package, which fixes these issues and upgrades virt-v2v to version 0.8.3.