this post was submitted on 14 Nov 2023
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TLDR: Ubuntu Pro offers additional security patches to packages found in the universe repo. Universe is community maintained so Ubuntu is essentially stepping in to provide critical CVE patches to some popular software in this repo that the community has not addressed.
I suppose it depends on how you look at it but I don't really see this as withholding patches. Software in this repo would otherwise be missing these patches and it's a ton of work for Ubuntu to provide these patches themselves.
Now is they move glibc to universe and tell me to subscribe to get updates I'll feel differently.
How does this compare to other distros?
Debian includes ffmpeg, for example, in the main stable repo. Given Debian's reputation, I would think they are including these security patches in a timely manner, though I'm not entirely sure how to compare specific patches to verify this.
Of course, everything changes when you are selling support contracts. Canonical and Red Hat are the big two for enterprise because they provide support.
When I was last running Ubuntu on desktop, I signed up for an account and enabled these extra security updates. Yeah, it's "free", but it requires jumping through hoops. Requiring an account to get patches is the kind of user-hostile design pattern I expect from Apple or Google, but not in the desktop Linux world.
Nobody else has this hybrid model. RHEL is a paid distro in general. Most others are just free entirely. They all patch CVEs when they can. Ubuntu doesn’t write all of their patches or anything.
Ubuntu and Debian are essentially the same here.
Debian's
contribrepo, which is the equivalent of Ubuntu'suniverserepo, doesn't get security updates from the Debian security team, as it's not considered an official part of Debian. Package maintianers have to provide security updates. https://www.debian.org/security/faq#contribThe difference is that Ubuntu provide paid support for contrib packages, including patches. Debian doesn't have any official paid support options.