Vulnerability in key Linux system library

## Sources https://boehs.org/node/everything-i-know-about-the-xz-backdoor https://git.tukaani.org/?p=xz.git;a=commitdiff;h=cf44e4b7f5dfdbf8c78aef377c10f71e274f63c0 https://git.tukaani.org/?p=xz.git;a=commitdiff;h=6e636819e8f070330d835fce46289a3ff72a7b89 https://git.tukaani.org/?p=xz.git;a=commitdiff;h=ee44863ae88e377a5df10db007ba9bfadde3d314 https://github.com/JiaT75/oss-fuzz/commit/6403e93344476972e908ce17e8244f5c2b957dfd https://www.mail-archive.com/[email protected]&q=Kumar&x=0&y=0 https://git.tukaani.org/?p=xz.git;a=commitdiff;h=aa75c5563a760aea3aa23d997d519e702e82726b https://www.mail-archive.com/[email protected]/msg00565.html https://github.com/libarchive/libarchive/pull/2101 https://tukaani.org/xz-backdoor/ https://www.openwall.com/lists/oss-security/2024/03/29/4 https://github.com/tukaani-project/xz/releases/tag/v5.6.0 https://salsa.debian.org/debian/xz-utils/-/blob/debian/unstable/m4/build-to-host.m4?ref_type=heads#L63 https://gist.github.com/thesamesam/223949d5a074ebc3dce9ee78baad9e27 https://github.com/Midar/xz-backdoor-documentation/wiki https://bugs.gentoo.org/928134 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1068024 https://news.opensuse.org/2024/03/29/xz-backdoor/ #xz #linux #security #vulnerability #lzma #liblzma #jiatan