CVE-2024-3094
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
29/03/2024
Last modified:
06/02/2025
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.
Impact
Base Score 3.x
10.00
Severity 3.x
CRITICAL
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:tukaani:xz:5.6.0:*:*:*:*:*:*:* | ||
| cpe:2.3:a:tukaani:xz:5.6.1:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- https://access.redhat.com/security/cve/CVE-2024-3094
- https://bugzilla.redhat.com/show_bug.cgi?id=2272210
- https://www.openwall.com/lists/oss-security/2024/03/29/4
- https://www.redhat.com/en/blog/urgent-security-alert-fedora-41-and-rawhide-users
- 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-2024-3094
- https://ariadne.space/2024/04/02/the-xz-utils-backdoor-is-a-symptom-of-a-larger-problem/
- https://arstechnica.com/security/2024/03/backdoor-found-in-widely-used-linux-utility-breaks-encrypted-ssh-connections/
- https://aws.amazon.com/security/security-bulletins/AWS-2024-002/
- https://blog.netbsd.org/tnf/entry/statement_on_backdoor_in_xz
- https://boehs.org/node/everything-i-know-about-the-xz-backdoor
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1068024
- https://bugs.gentoo.org/928134
- https://bugzilla.redhat.com/show_bug.cgi?id=2272210
- https://bugzilla.suse.com/show_bug.cgi?id=1222124
- https://discourse.nixos.org/t/cve-2024-3094-malicious-code-in-xz-5-6-0-and-5-6-1-tarballs/42405
- https://gist.github.com/thesamesam/223949d5a074ebc3dce9ee78baad9e27
- https://github.com/advisories/GHSA-rxwq-x6h5-x525
- https://github.com/amlweems/xzbot
- https://github.com/karcherm/xz-malware
- https://gynvael.coldwind.pl/?lang=en&id=782
- https://lists.debian.org/debian-security-announce/2024/msg00057.html
- https://lists.freebsd.org/archives/freebsd-security/2024-March/000248.html
- https://lwn.net/Articles/967180/
- https://news.ycombinator.com/item?id=39865810
- https://news.ycombinator.com/item?id=39877267
- https://news.ycombinator.com/item?id=39895344
- https://openssf.org/blog/2024/03/30/xz-backdoor-cve-2024-3094/
- https://research.swtch.com/xz-script
- https://research.swtch.com/xz-timeline
- https://security-tracker.debian.org/tracker/CVE-2024-3094
- https://security.alpinelinux.org/vuln/CVE-2024-3094
- https://security.archlinux.org/CVE-2024-3094
- https://security.netapp.com/advisory/ntap-20240402-0001/
- https://tukaani.org/xz-backdoor/
- https://twitter.com/LetsDefendIO/status/1774804387417751958
- https://twitter.com/debian/status/1774219194638409898
- https://twitter.com/infosecb/status/1774595540233167206
- https://twitter.com/infosecb/status/1774597228864139400
- https://ubuntu.com/security/CVE-2024-3094
- https://www.cisa.gov/news-events/alerts/2024/03/29/reported-supply-chain-compromise-affecting-xz-utils-data-compression-library-cve-2024-3094
- https://www.darkreading.com/vulnerabilities-threats/are-you-affected-by-the-backdoor-in-xz-utils
- https://www.kali.org/blog/about-the-xz-backdoor/
- https://www.openwall.com/lists/oss-security/2024/03/29/4
- https://www.redhat.com/en/blog/urgent-security-alert-fedora-41-and-rawhide-users
- https://www.tenable.com/blog/frequently-asked-questions-cve-2024-3094-supply-chain-backdoor-in-xz-utils
- https://www.theregister.com/2024/03/29/malicious_backdoor_xz/
- https://www.vicarius.io/vsociety/vulnerabilities/cve-2024-3094
- https://xeiaso.net/notes/2024/xz-vuln/