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    XSA-468: multiple Windows PV driver vulnerabilities - update now!

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    • M Offline
      manilx @DustinB
      last edited by

      @DustinB Did run usr/bin/create-guest-templates but tepmlates are gone here also.

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      • D Offline
        DustinB @manilx
        last edited by

        @manilx said in XSA-468: multiple Windows PV driver vulnerabilities - update now!:

        @DustinB Did run usr/bin/create-guest-templates but tepmlates are gone here also.

        I did not, I'm in the middle of an AV/EDR migration and this way added to the list of things to touch while I was on the systems.

        To me the templates are a minor inconvenience as we aren't constantly adding VMs.

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        • C Offline
          conitrade-as @DustinB
          last edited by

          @DustinB Not IP assignments, I am talking about static routes. See e.g. https://learn.microsoft.com/en-us/powershell/module/nettcpip/get-netroute

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          • D Offline
            DustinB @conitrade-as
            last edited by

            @conitrade-as said in XSA-468: multiple Windows PV driver vulnerabilities - update now!:

            @DustinB Not IP assignments, I am talking about static routes. See e.g. https://learn.microsoft.com/en-us/powershell/module/nettcpip/get-netroute

            Okay.... what...

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            • pdoniasP Offline
              pdonias Vates 🪐 XO Team @DustinB
              last edited by pdonias

              Hi! Regarding the templates issue, we're working on a fix on branch pierre-fix-xsa468-test master. Would anyone having the issue be available to test it?

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              • C Offline
                conitrade-as @pdonias
                last edited by

                @pdonias Sure thing. I can test it in my test environment.

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                • C Offline
                  conitrade-as @conitrade-as
                  last edited by

                  Just did a couple more tests. Here are my findings:

                  • Upgrading the tools from v9.3.3 to v9.4.1 does preserve the routing table.
                  • Upgrading the tools from v9.2.1 to v9.4.1 does not preserve the routing table.

                  Here are a couple of powershell commands used for testing:

                  Get-NetRoute -PolicyStore PersistentStore
Get-NetAdapter
New-NetRoute -DestinationPrefix "10.10.0.0/24" -InterfaceIndex <ifIndex> -NextHop 10.10.0.254
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                  • D Offline
                    dinhngtu Vates 🪐 XCP-ng Team @conitrade-as
                    last edited by dinhngtu

                    @conitrade-as This is a known issue when upgrading from XS WinPV 9.3.0 and below: https://support.citrix.com/s/article/CTX235403-updates-to-xenserver-vm-tools-for-windows-for-xenserver-and-citrix-hypervisor

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                    • C Offline
                      conitrade-as @dinhngtu
                      last edited by

                      @dinhngtu Thanks for the pointer. Yes, it seems that the root cause also makes routes disappear. Howerver, that the routing information is gone is sadly not mentioned explicitly. May be something to add to your docs as well.

                      Caution when updating tools: Verify interface IP configuration and routing entries.

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                      • stormiS Offline
                        stormi Vates 🪐 XCP-ng Team @Forza
                        last edited by

                        @Forza said in XSA-468: multiple Windows PV driver vulnerabilities - update now!:

                        Hi,

                        It is not clear to me if the old XCP-ng PV drivers (8.2.2.200-RC1) are affected or not. How should we proceed if they are?

                        Do others share this feeling and have this question after re-reading the whole announcement?

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                        • D Offline
                          DustinB @stormi
                          last edited by

                          @stormi said in XSA-468: multiple Windows PV driver vulnerabilities - update now!:

                          Do others share this feeling and have this question after re-reading the whole announcement?

                          No it's pretty clear, update the drivers on everything as all versions are susceptible.

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                          • F Offline
                            flakpyro @conitrade-as
                            last edited by

                            @dinhngtu

                            One thing i've noticed since upgrading to tools version 9.4.1 is that the version installed will display properly in XOA up until the VM is migrated. After a migration it changed to just "Management agent detected" with no version shown. Not sure if this is an XO issue or an issue with the tools itself?

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                            • stormiS Offline
                              stormi Vates 🪐 XCP-ng Team @flakpyro
                              last edited by stormi

                              @flakpyro There's also a chance this is a XAPI issue. CC @andriy.sultanov

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                              • D Offline
                                dinhngtu Vates 🪐 XCP-ng Team @stormi
                                last edited by

                                @flakpyro What do you get from this command?

                                xe vm-param-get uuid=<uuid> param-name=PV-drivers-version

                                @stormi It sounds like the issue we encountered in CI with the management agent not restoring version numbers after migration.

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                                • F Offline
                                  flakpyro @dinhngtu
                                  last edited by

                                  @dinhngtu here is the output from one of the VMs recently migrated:

                                  xe vm-param-get uuid=261634d9-b67c-1048-b028-2e33abea6329 param-name=PV-drivers-version
micro: -1; xennet: XenServer 9.1.7.65 ; xeniface: XenServer 9.1.12.94 ; xenvif: XenServer 9.1.13.107 ; xenvbd: XenServer 9.1.9.82 ; xenbus: XenServer 9.1.11.115
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                                  • A Offline
                                    archw @flakpyro
                                    last edited by

                                    @flakpyro
                                    I've found a similar issue with all VMs I update. After I update and reboot, it stays at "Management agent detected" with no version shown.

                                    Once I reboot a second time, it stays at "Management agent detected" with "Management agent 9.4.1-160 detected"

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                                    • C Offline
                                      conitrade-as @archw
                                      last edited by

                                      @archw I can confirm. That is exactly the behaviour I see with my Windows VMs.

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                                      • T Offline
                                        TrapoSAMA
                                        last edited by

                                        HI!

                                        Upgrade Xentools take two reboot for complete! if you have old tools installed isbetter upgrade to 7 and after to 9

                                        About this last somebody have some issue upgrading windows server 2012R2?

                                        Thx

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                                        • D Offline
                                          dinhngtu Vates 🪐 XCP-ng Team @TrapoSAMA
                                          last edited by

                                          @TrapoSAMA Windows Server 2012/2012R2 are no longer supported by our (XCP-ng) drivers nor by XenServer drivers.

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                                          • T Offline
                                            TrapoSAMA @dinhngtu
                                            last edited by

                                            @dinhngtu

                                            hi!! normally install Xen drivers not XCP driver yet. Some experience with this issue when install over 2012r2?

                                            Thx

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