Linux

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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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backdoor in upstream xz/liblzma leading to ssh server compromise (www.openwall.com)

submitted 7 months ago by [email protected] to c/[email protected]

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[–] [email protected] 1 points 7 months ago

You're right, there's more parts to it, especially social engineering. Maybe there's other ways to hide a payload, but there aren't many avenues. You have to hide the payload in a binary artefact, which are pretty suspicious when you don't do it in a (well scrutinized) cryptography lib, or a compression lib.

Then that payload has to be executed for some reason, which means you need a really good reason to embed it (e.g. something like widevine), or have to modify the build script.