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backdoor in upstream xz/liblzma leading to ssh server compromise
(www.openwall.com)
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this post was submitted on 29 Mar 2024
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Arch is on 5.6.1 as of now: https://archlinux.org/packages/core/x86_64/xz/
We at Nixpkgs have barely evaded having it go to a channel used by users and we don't seem to be affected by the backdoor.
Arch had a patch rolled out yesterday [1][2][3] that switches to the git repo. On top of that the logic in the runtime shim and build script modifier was orchestrated to target Debian and RPM build systems and environments [4].
[1] https://gitlab.archlinux.org/archlinux/packaging/packages/xz/-/commit/881385757abdc39d3cfea1c3e34ec09f637424ad
[2] https://gitlab.archlinux.org/archlinux/packaging/packages/xz/-/issues/2
[3] https://security.archlinux.org/CVE-2024-3094
[4] https://www.openwall.com/lists/oss-security/2024/03/29/4