this post was submitted on 10 Apr 2024
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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[–] xlash123@sh.itjust.works 276 points 7 months ago (2 children)

Commit 77a294d

Update maintainer and author info. The other maintainer suddenly disappeared.

Lmao, that's putting it lightly.

[–] 7eter@feddit.de 171 points 7 months ago (1 children)

the other maintainer now has a special place:

Special author: Jia Tan was a co-maintainer in 2022-2024. He and the team behind him inserted a backdoor (CVE-2024-3094) into XZ Utils 5.6.0 and 5.6.1 releases. He suddenly disappeared when this was discovered.

[–] rollingflower@lemmy.kde.social 49 points 7 months ago* (last edited 7 months ago) (2 children)
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[–] autokludge@programming.dev 75 points 7 months ago* (last edited 7 months ago) (2 children)
[–] ReakDuck@lemmy.ml 41 points 7 months ago* (last edited 7 months ago)

Hmm yes.

The floor is made out of floor

[–] mutter9355@discuss.tchncs.de 3 points 7 months ago

I like how the first point made is that the backdoor violates the Debian Free Software Guidelines, as if that's the main problem

[–] possiblylinux127@lemmy.zip 128 points 7 months ago (2 children)

I wonder if he has a donation page. We need to get him some money.

[–] kadu@lemmy.world 251 points 7 months ago* (last edited 7 months ago) (9 children)

I agree we should support him, but you know who should be more concerned with giving him and other open source maintainers money? The billion dollar corporations that rely on these critical projects and use them absolutely for free. Amazon, Microsoft, Sony, Samsung, Google, Siemens, Motorola, God knows how many more.

[–] Lmaydev@programming.dev 83 points 7 months ago (15 children)

But when open source projects go dual license to try and get paid people lose their minds.

[–] rollingflower@lemmy.kde.social 21 points 7 months ago

This!!!!

This!!

People, stop celebrating "freeing" software of maintainers that want to prevent being exploited.

[–] rickyrigatoni@lemm.ee 7 points 7 months ago

Seriously. If you're not a business why do you care?

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[–] aard@kyu.de 37 points 7 months ago (1 children)

He probably needs a comaintainer. We could select one of us and then try pressuring him into accepting that.

[–] intrepid@lemmy.ca 30 points 7 months ago

Stop right there, Jio Tan! The same trick doesn't work twice.

[–] possiblylinux127@lemmy.zip 16 points 7 months ago (1 children)

We need more non profits who can set aside funds for these projects. It not like these companies don't want to help its just jot entirely clear how they can help.

[–] mraow_@lemmy.blahaj.zone 1 points 7 months ago (4 children)

They can help by donating some of their billions.

[–] Strit@lemmy.linuxuserspace.show 5 points 7 months ago (1 children)

Sure. But if the project in question only has one or two donation methods and none of those are supported by the company, then the company can't easily donate anything. Companies usually have a strict way of how they can donate and it usually entails Paypal or some other costly solution, while projects like that likely just has a patreon or LibrePay option and perhaps a crypto wallet. Most companies can't work with that.

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[–] MenigPyle@feddit.dk 13 points 7 months ago

I wrote to ask him but I never heard back. To be fair he's probably quite stressed at the moment.

[–] Yondoza@sh.itjust.works 33 points 7 months ago (8 children)

Can someone provide a summary on what this means? I thought there were malicious exploits in this. Why is it back up and the perpetrator unbanned?

[–] Nomad_Scry@lemmy.sdf.org 156 points 7 months ago

Lasse Collin is not the perpetrator, that would be "Jia Tan".

https://tukaani.org/xz-backdoor/

[–] pixxelkick@lemmy.world 97 points 7 months ago (1 children)

Lasse is the original maintainer of XZ, they have been placed back in their position as sole maintainer.

"Jia Tan" was the person who slipped the backdoor into XZ and is now banned.

Lasse has already fixed abd removed the backdoor.

XZ itself is critical software everyone uses (its one of the main compression/decompression programs used on linux)

[–] Auli@lemmy.ca 5 points 7 months ago* (last edited 7 months ago) (3 children)

Yes but damage seems to be done. Distros are talking or have moved off of it to zstd.

[–] bhamlin@lemmy.world 22 points 7 months ago (1 children)

There are some, probably. But any exodus will be slow. Xz isn't useless because it was dangerous once.

[–] intrepid@lemmy.ca 14 points 7 months ago

Besides, XZ isn't the only project in such a danger. Banning doesn't solve that problem. They need to put in more funding and eyes.

[–] Calyhre@lemmy.world 10 points 7 months ago

I would argue this might make xz safer mid-term. So much eyes on it. I’m not familiar with other solutions, but who’s to say the bad actor won’t try a similar trick elsewhere

[–] PlexSheep@infosec.pub 10 points 7 months ago (1 children)

Zstd and xz fullfil different needs. Xz take more time to compress and is faster to decompress as far as I know.

[–] Atemu@lemmy.ml 6 points 7 months ago

XZ is a slog to compress and decompress but compresses a bit smaller than zstd.

zstd is quite quick to compress, very quick to decompress, scales to many cores (vanilla xz is single-core only) and scales a lot further in the quicker end of the compression speed <-> file size trade-off spectrum while using the same format.

[–] 4am@lemm.ee 57 points 7 months ago

Exploits were removed. Maintainer who committed them still banned. xz is a critical piece of software.

[–] abc@lemmus.org 41 points 7 months ago

There's a Wikipedia article regarding this incident. Have a look: https://en.wikipedia.org/wiki/XZ_Utils_backdoor

[–] bhamlin@lemmy.world 37 points 7 months ago

This sounds just like something Jia Tan might say...

[–] treadful@lemmy.zip 36 points 7 months ago (1 children)

Don't downvote people asking questions.

[–] silliewous@feddit.nl 36 points 7 months ago

The second maintainer was most likely the culprit.

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