vulnerability

Gentoo Linux: CVE-2024-3094: XZ utils: Backdoor in release tarballs

Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
Mar 29, 2024
Added
Apr 1, 2024
Modified
Mar 31, 2026

Description

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.

Solution

gentoo-linux-upgrade-app-arch-xz-utils
Title
Rapid7 Labs

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