[Pkg-virtualbox-devel] Bug#871645: virtualbox: NatNetwork doesn't allow connections beyond the host due to VBoxNetNAT missing the suid bit

[Daniel Reichelt]

Package: virtualbox
Version: 5.1.26-dfsg-2
Severity: normal

Dear Maintainer,

when creating VMs, each with a NatNetwork NIC, the VMs can happily talk
to each other but network access beyond the virtualbox host is not
possible. Conventional NAT mode is not affected and works perfeclty
fine.




Fix:

# chmod u+s /usr/lib/virtualbox/VBoxNetNAT

…and kill off possibly lingering VBoxNetNAT processes and restart the
VMs --> network access beyond the vbox host should work now.




I just confirmed that the generic linux installer package from
virtualbox.org installs the VBoxNetNAT binary as suid.


Cheers
Daniel


-- System Information:
Debian Release: 9.1
  APT prefers proposed-updates
  APT policy: (990, 'proposed-updates'), (990, 'stable'), (500, 'oldstable-updates'), (500, 'oldstable-proposed-updates'), (500, 'testing'), (500, 'oldstable'), (98, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.11.0-0.bpo.1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Init: sysvinit (via /sbin/init)