🛡️ CVE-2024-3094
🔴 CVSS 10.0 — Critical ✅ No Known Exploit CWE-506 NVD
10.0
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity CRITICAL
CVSS Score 10.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE CWE-506
Public Exploit ✅ No
Source NVD
Published 2024-03-29
Updated 2026-06-02
Modified 2025-08-19
Fix URL N/A

Affected Packages

Software From version Fixed in
xz — —

References

Issue Tracking, Vendor Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2272210
Issue Tracking, Third Party Advisory https://bugs.gentoo.org/928134
Issue Tracking, Vendor Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2272210
Issue Tracking, Third Party Advisory https://bugzilla.suse.com/show_bug.cgi?id=1222124
Technical Description, Third Party Advisory https://gynvael.coldwind.pl/?lang=en&id=782
Issue Tracking, Third Party Advisory https://lwn.net/Articles/967180/
Issue Tracking, Third Party Advisory https://news.ycombinator.com/item?id=39865810
Issue Tracking, Vendor Advisory https://tukaani.org/xz-backdoor/

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