CVE-2024-3094
Critical
10.0 CVSS v3.1
- Published
- Mar 29, 2024
- Updated
- Jun 17, 2026
- Vendor
- Tukaani
- Affected versions
- See affected products
- Weakness
- CWE-506
Summary
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.
Severity
Critical (10.0)CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
- Tukaani Xz 5.6.0
- Tukaani Xz 5.6.1
Exploitation status
Unknown
Technical details
Technical analysis has not been written for this record yet.
Mitigation & remediation
Follow the vendor advisory linked below for patches and workarounds.