Malicious Backdoor Found in Linux

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Malicious Backdoor Found in Linux
Malicious code was discovered in the upstream tarballs of xz, starting with version 5.6.0. Through a series of complex obfuscations, the liblzma build process extracts a prebuilt object file from a disguised test file existing in the source code, which is then used to modify specific functions in the liblzma code. This results in a modified liblzma library that can be used by any software linked against this library, intercepting and modifying the data interaction with this library.

https://thehackernews.com/2024/03/urgent-secret-backdoor-found-in-xz.html

https://en.wikipedia.org/wiki/XZ_Utils

https://nvd.nist.gov/vuln/detail/CVE-2024-3094

https://www.openwall.com/lists/oss-security/2024/03/29/4


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