About the BLOBs in Ventoy

7 months ago (github.com)

Nice that the community is addressing this. I was never able to trust Ventoy in the past, and as such still have a wide array of USB sticks to install Linux flavors with.

  • For installation I have had to drop back to a normal single-image USB stick before now because the installer became confused by the EFI partition presented by the unpacked ISO and anything found/not on the target drives.

    Ventoy is very handy for running things live though, and not all installers/situations are affected by this (and there they are, it isn't really ventoy's fault).

  • I have a bunch of network-bootable installers set up on my DHCP server. If I want to install a new machine I simply set it to boot from the network. From there I can just select whichever distro I want. I also added some utils like Memtest86

    • Do you have this documented somewhere?

      I tried to set up netboot a few times, it seems like this should be very easy to do, especially that I self host many things, but I get lost in the technical details every time. I think I succeeded once, with the dhcp server running on a laptop running Debian…

      Turns out doing some speleology to find a USB key and burning an ISO on it using cat or pv ends up being radically easier…

      (OTOH it's been a while since I last tried and now I have root on my router running OpenWrt so I guess it would be a tad easier…)

      5 replies →

  • NB mainly iVentoy seems to be suspicious, relying on Windows exploits to bypass certification needs.

    • That was both it's charm,and it's notoriousness. I was using it, but when the blob thing became a concern, me and the guy who recommended it, stopped using it,and now it's more of a curiosity, but no longer used. EFI is basically crippleware now,and two dev friends of mine just bought macs, leaving me their Lenovo collections. Two X1 carbons and three T590s.

If[0] the maintainer is entirely honest and well-intentioned, they are clearly a vulnerable target lacking the capabilities to reliably detect if their supply chain would be compromised. Using Ventoy is a huge risk regardless of what you think of maintainer credibility at this point.

The cynical take is that what's on display in this issue is feigned ignorance/incompetence constructing plausible deniability.

Their security posture has not evolved with the times, the threat-landscape, and the growth of the project.

[0]: Very doubtful if you have been following this saga or dig around enough

I really like Ventoy and use it and I’m just not worried about getting attacked with it on my personal homelab.

It just works really well.

FWIW "blob" isn't an acronym. It refers metaphorically to an amorphous ball of goop. In databases only, it has been backronymed to "binary large object".

Having just used Ventoy to install Linux on a computer, should I consider it compromised and reinstall? Or technically completely trash it?

  • That would be quite an overblown reaction. There is currently no proof of malicious activity.

    • In fact there's no suspicion or allegation of malicious activity. This all started as a "hey it's not oss and i can't stand things that aren't oss." With all the security scare theater being used to justify the "it needs to be oss" demands.

I'll believe it when it happens. The maintainer hasn't done much regarding this for over 5 years. There are issues raised about this back in 2020 and not much has changed. It just seems suspicious to me. But I might be paranoid.

I'm not willing to trust it.

  • Same. Even the issue presented here seems to not be taken seriously.

    Paraphrasing, but things like: "Ah well, some blobs are ok, it is just for convenience" just smells like trouble.

    The project is free and all, but damn. Has nobody, in the last half a decade, thought about automagically building those blobs alongside the project?

    In my brain you're just postponing a large build system refactor, one that will get worse over time.

So much work because most people can’t manage a simple dd-invocation.

And because Windows don’t allow direct access to the physical layer from a user-space shell.

Such a waste.

  • The primary reason why I use Ventoy is because of its ability to use multiple ISO's, which I can select from when booting. I don't think that's possible with dd.

    It's also possible to use the usb stick for regular files, Ventoy will just ignore them. Pretty useful when you need it.