Launchpad has imported 3 comments from the remote bug at https://bugzilla.redhat.com/show_bug.cgi?id=667097.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2011-01-04T12:30:55+00:00 Neil wrote: Description of problem: The help for 'vnc_password' in qemu.conf states "An empty string will still enable passwords, but be rejected by QEMU effectively preventing any use of VNC.". Yet if you set vnc_password="" then you can access the VNC console without any password prompt at all - just as you can if the entry is hashed out. Version-Release number of selected component (if applicable): libvirtd (libvirt) 0.8.3 How reproducible: Every time by configuration Steps to Reproduce: 1. Create a VNC console without a password. 2. Set vnc_password="" in /etc/libvirt/qemu.conf 3. Start up a guest and access the VNC console with a client. Actual results: You get straight into the console with no prompts. Expected results: Should have come up with a prompt and rejected the access. Or the instructions in the qemu.conf file need changing to take account of the current behaviour. Additional info: Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/697197/comments/2 ------------------------------------------------------------------------ On 2011-01-04T12:48:32+00:00 Neil wrote: Similarly if you set the passwd attribute to '' in the vnc graphics XML stanza. Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/697197/comments/3 ------------------------------------------------------------------------ On 2011-01-07T14:45:34+00:00 Daniel wrote: This is not a libvirt bug. This is caused by a flaw in particular QEMU version you are using, which silently disables auth when the password is set to "". This bug was introduced in QEMU in this bogus commit commit 52c18be9e99dabe295321153fda7fce9f76647ac Author: Zachary Amsden <zams...@redhat.com> Date: Thu Jul 30 00:15:01 2009 -1000 When using stdio monitor and VNC display, one can set or clear a VNC password; this should set or turn off VNC authentication as well. Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/697197/comments/5 ** Changed in: libvirt Status: Unknown => Invalid ** Changed in: libvirt Importance: Unknown => Medium ** Changed in: qemu-kvm Status: Unknown => Fix Released ** Changed in: qemu-kvm Importance: Unknown => Medium -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/697197 Title: Empty password allows access to VNC in libvirt Status in libvirt: Invalid Status in QEMU: Fix Released Status in qemu-kvm: Fix Released Status in libvirt package in Ubuntu: Invalid Status in qemu-kvm package in Ubuntu: Fix Released Status in libvirt source package in Lucid: Invalid Status in qemu-kvm source package in Lucid: Fix Released Status in libvirt source package in Maverick: Invalid Status in qemu-kvm source package in Maverick: Fix Released Status in libvirt source package in Natty: Invalid Status in qemu-kvm source package in Natty: Fix Released Status in libvirt source package in Karmic: Invalid Status in qemu-kvm source package in Karmic: Fix Released Status in qemu-kvm package in Debian: Fix Released Bug description: The help in the /etc/libvirt/qemu.conf states "To allow access without passwords, leave this commented out. An empty string will still enable passwords, but be rejected by QEMU effectively preventing any use of VNC." yet setting: vnc_password="" allows access to the vnc console without any password prompt just as if it is hashed out completely. ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: libvirt-bin 0.8.3-1ubuntu14 ProcVersionSignature: Ubuntu 2.6.35-24.42-server 2.6.35.8 Uname: Linux 2.6.35-24-server x86_64 Architecture: amd64 Date: Tue Jan 4 12:18:35 2011 InstallationMedia: Ubuntu-Server 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.2) ProcEnviron: LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: libvirt To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/697197/+subscriptions
