curl https://some-url/ | sh
I see this all over the place nowadays, even in communities that, I would think, should be security conscious. How is that safe? What’s stopping the downloaded script from wiping my home directory? If you use this, how can you feel comfortable?
I understand that we have the same problems with the installed application, even if it was downloaded and installed manually. But I feel the bar for making a mistake in a shell script is much lower than in whatever language the main application is written. Don’t we have something better than “sh” for this? Something with less power to do harm?
There is a reason why they do this. For stable release distros, particularly Debian, they refuse to update packages beyond fixing vulnerabilities as part of a way to ensure that the system changes minimally. This means that for example, if a software depends on a library, it will stay working for the lifecycle of a stable release. Sometimes latest isn’t the greatest.
You swapped PKBUILD and APKBUILD 🙃
Homebrew, in theory, could do this. But they insist on creating a separate user and installing to that user’s home directory
Of course. It also prevents people from getting all improvements that aren’t security. It’s especially bad for software engineers who are developing applications that need on a non-security big fix or new feature. It’s fine if all you need is a box that’s going to run the same version of some software, sitting forgotten in a closet that gets walled in some day. IMO, it’s a crappy system for anything else.
I did! I’ve been trying to update packages in both, recently. The similarities are utterly frustrating, as they’re almost identical; the biggest difference between Alpine and Arch is the package process. If they were the same format - and they’re honestly so close it’s absurd - it’d make packager’s lives easier.
I may have mentioned I haven’t yet started Void, but I expect it to be similarly frustrating: so very, very similar.
Yeah, I got to thinking about this more after I posted, and it’s a horrible idea. It’d guarantee system updates break user installs, and the only way it couldn’t were if system installs knew about user installs and also updated those, which would defeat the whole purpose.
So you end up back with containers, or AppImages, Snap, or Flatpack. Although, of all of these, AppImages and podman are the most sane, since Snap and Flatpack are designed to manage system-level software, which isn’t much of am issue.
It all drives me back to the realization that the best solution is statically compiled binaries, as produced by Go, Rust, Zig, Nim, V. I’d include C, but the temptation to dynamically link is so ingrained in C - I rarely see really statically linked C projects.
This is what they tell themselves. That they need that fix. So then developers get themselves unstable packages — but wait! If they update just one version further, then compatibility will with something broken, and that requires work to fix.
So what happens is they pin and/or vendor dependencies, and don’t update them, even for security updates. I find this quite concerning. For example, Rustdesk, a popular rust based remote desktop software. Here’s a quick audit of their libraries using cargo-audit:
[nix-shell:~/vscode/test/rustdesk]$ cargo-audit audit Fetching advisory database from `https://github.com/RustSec/advisory-db.git` Loaded 742 security advisories (from /home/moonpie/.cargo/advisory-db) Updating crates.io index warning: couldn't update crates.io index: registry: No such file or directory (os error 2) Scanning Cargo.lock for vulnerabilities (825 crate dependencies) Crate: idna Version: 0.5.0 Title: `idna` accepts Punycode labels that do not produce any non-ASCII when decoded Date: 2024-12-09 ID: RUSTSEC-2024-0421 URL: https://rustsec.org/advisories/RUSTSEC-2024-0421 Crate: libgit2-sys Version: 0.14.2+1.5.1 Title: Memory corruption, denial of service, and arbitrary code execution in libgit2 Date: 2024-02-06 ID: RUSTSEC-2024-0013 URL: https://rustsec.org/advisories/RUSTSEC-2024-0013 Severity: 8.6 (high) Solution: Upgrade to >=0.16.2 Crate: openssl Version: 0.10.68 Title: ssl::select_next_proto use after free Date: 2025-02-02 ID: RUSTSEC-2025-0004 URL: https://rustsec.org/advisories/RUSTSEC-2025-0004 Solution: Upgrade to >=0.10.70 Crate: protobuf Version: 3.5.0 Title: Crash due to uncontrolled recursion in protobuf crate Date: 2024-12-12 ID: RUSTSEC-2024-0437 URL: https://rustsec.org/advisories/RUSTSEC-2024-0437 Solution: Upgrade to >=3.7.2 Crate: ring Version: 0.17.8 Title: Some AES functions may panic when overflow checking is enabled. Date: 2025-03-06 ID: RUSTSEC-2025-0009 URL: https://rustsec.org/advisories/RUSTSEC-2025-0009 Solution: Upgrade to >=0.17.12 Crate: time Version: 0.1.45 Title: Potential segfault in the time crate Date: 2020-11-18 ID: RUSTSEC-2020-0071 URL: https://rustsec.org/advisories/RUSTSEC-2020-0071 Severity: 6.2 (medium) Solution: Upgrade to >=0.2.23 Crate: atk Version: 0.18.0 Warning: unmaintained Title: gtk-rs GTK3 bindings - no longer maintained Date: 2024-03-04 ID: RUSTSEC-2024-0413 URL: https://rustsec.org/advisories/RUSTSEC-2024-0413 Crate: atk-sys Version: 0.18.0 Warning: unmaintained Title: gtk-rs GTK3 bindings - no longer maintained Date: 2024-03-04 ID: RUSTSEC-2024-0416 URL: https://rustsec.org/advisories/RUSTSEC-2024-0416I also checked rustscan and found similar issues.
I’ve pruned the dependency tree and some other unmaintained package issues, but some of these CVE’s are bad. Stuff like this is why I don’t trust developers to make packages, they get lazy and sloppy at the cost of security. On the other hand, stable release distributions inflict security upgrades on everybody, which is good.
???. This is very incorrect. I don’t know where to start. If a package manager manages it’s own dependencies/libraries, like nix portable installs, or is a static binary (e.g: soar), then system installs will not interfere with the “user” package manager at all. You could also use something like launchd (mac) or systemd users services (linux) to update these packages with user level privileges, in the user’s home directory.
Also, I don’t know where you got the idea that flatpaks manage “system level” software.
I dislike these because they commonly also come with version pinning and vendoring dependencies. But you should check out Soar and it’s repository. It also packages appimages, and “flatimages”, which seem to be similar to flatpaks but closer to appimages in distribution.