CVE-2024-3094

Vulnerability 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.

CVSS Score

Affected Products

Related Weaknesses (CWE)

References

• https://access.redhat.com/security/cve/CVE-2024-3094Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2272210Issue TrackingVendor Advisory
• https://www.openwall.com/lists/oss-security/2024/03/29/4Mailing List
• https://www.redhat.com/en/blog/urgent-security-alert-fedora-41-and-rawhide-usersVendor Advisory
• http://www.openwall.com/lists/oss-security/2024/03/29/10
• http://www.openwall.com/lists/oss-security/2024/03/29/12
• http://www.openwall.com/lists/oss-security/2024/03/29/4
• http://www.openwall.com/lists/oss-security/2024/03/29/5
• http://www.openwall.com/lists/oss-security/2024/03/29/8
• http://www.openwall.com/lists/oss-security/2024/03/30/12
• http://www.openwall.com/lists/oss-security/2024/03/30/27
• http://www.openwall.com/lists/oss-security/2024/03/30/36
• http://www.openwall.com/lists/oss-security/2024/03/30/5
• http://www.openwall.com/lists/oss-security/2024/04/16/5
• https://access.redhat.com/security/cve/CVE-2024-3094Vendor Advisory