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WARNING: Malicious code in current pre-release & testing versions/variants: F40 and rawhide affected - users of F40/rawhide need to respond
(discussion.fedoraproject.org)
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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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Running Ubuntu 23.10 with xz-utils 5.41 which is unaffected. Versions 5.6.0 and 5.6.1 are the malicious packages. I used Synaptic Package Manager to search for it.
The bad actor had a launchpad bug to pull it into the Ubuntu LTS beta. Serious kudos to the person who discovered it, literally in the nick of time.
Same story with Fedora
On Ubuntu the only affected people were those running the prerelease of Ubuntu 24.04 who had installed the update from the
proposed
pocket.