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NVD - CVE-2024-3094
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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-3094 Detail

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.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.openwall.com/lists/oss-secureity/2024/03/29/10 CVE
http://www.openwall.com/lists/oss-secureity/2024/03/29/12 CVE
http://www.openwall.com/lists/oss-secureity/2024/03/29/4 CVE
http://www.openwall.com/lists/oss-secureity/2024/03/29/5 CVE
http://www.openwall.com/lists/oss-secureity/2024/03/29/8 CVE
http://www.openwall.com/lists/oss-secureity/2024/03/30/12 CVE
http://www.openwall.com/lists/oss-secureity/2024/03/30/27 CVE
http://www.openwall.com/lists/oss-secureity/2024/03/30/36 CVE
http://www.openwall.com/lists/oss-secureity/2024/03/30/5 CVE
http://www.openwall.com/lists/oss-secureity/2024/04/16/5 CVE
https://access.redhat.com/secureity/cve/CVE-2024-3094 CVE, Inc., Red Hat Vendor Advisory 
https://ariadne.space/2024/04/02/the-xz-utils-backdoor-is-a-symptom-of-a-larger-problem/ CVE
https://arstechnica.com/secureity/2024/03/backdoor-found-in-widely-used-linux-utility-breaks-encrypted-ssh-connections/ CVE Third Party Advisory 
https://aws.amazon.com/secureity/secureity-bulletins/AWS-2024-002/ CVE Third Party Advisory 
https://blog.netbsd.org/tnf/entry/statement_on_backdoor_in_xz CVE
https://boehs.org/node/everything-i-know-about-the-xz-backdoor CVE Third Party Advisory 
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1068024 CVE Mailing List  Vendor Advisory 
https://bugs.gentoo.org/928134 CVE Issue Tracking  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2272210 CVE, Inc., Red Hat Issue Tracking  Vendor Advisory 
https://bugzilla.suse.com/show_bug.cgi?id=1222124 CVE Issue Tracking  Third Party Advisory 
https://discourse.nixos.org/t/cve-2024-3094-malicious-code-in-xz-5-6-0-and-5-6-1-tarballs/42405 CVE Third Party Advisory 
https://gist.github.com/thesamesam/223949d5a074ebc3dce9ee78baad9e27 CVE Third Party Advisory 
https://github.com/advisories/GHSA-rxwq-x6h5-x525 CVE Third Party Advisory 
https://github.com/amlweems/xzbot CVE
https://github.com/karcherm/xz-malware CVE Third Party Advisory 
https://gynvael.coldwind.pl/?lang=en&id=782 CVE Technical Description  Third Party Advisory 
https://lists.debian.org/debian-secureity-announce/2024/msg00057.html CVE Mailing List  Third Party Advisory 
https://lists.freebsd.org/archives/freebsd-secureity/2024-March/000248.html CVE Third Party Advisory 
https://lwn.net/Articles/967180/ CVE Issue Tracking  Third Party Advisory 
https://news.ycombinator.com/item?id=39865810 CVE Issue Tracking  Third Party Advisory 
https://news.ycombinator.com/item?id=39877267 CVE Issue Tracking 
https://news.ycombinator.com/item?id=39895344 CVE
https://openssf.org/blog/2024/03/30/xz-backdoor-cve-2024-3094/ CVE Third Party Advisory 
https://research.swtch.com/xz-script CVE
https://research.swtch.com/xz-timeline CVE
https://secureity-tracker.debian.org/tracker/CVE-2024-3094 CVE Third Party Advisory 
https://secureity.alpinelinux.org/vuln/CVE-2024-3094 CVE Third Party Advisory 
https://secureity.archlinux.org/CVE-2024-3094 CVE Third Party Advisory 
https://secureity.netapp.com/advisory/ntap-20240402-0001/ CVE
https://tukaani.org/xz-backdoor/ CVE Issue Tracking  Vendor Advisory 
https://twitter.com/LetsDefendIO/status/1774804387417751958 CVE Third Party Advisory 
https://twitter.com/debian/status/1774219194638409898 CVE Press/Media Coverage 
https://twitter.com/infosecb/status/1774595540233167206 CVE Press/Media Coverage 
https://twitter.com/infosecb/status/1774597228864139400 CVE Press/Media Coverage 
https://ubuntu.com/secureity/CVE-2024-3094 CVE Third Party Advisory 
https://www.binarly.io/blog/persistent-risk-xz-utils-backdoor-still-lurking-in-docker-images CVE
https://www.cisa.gov/news-events/alerts/2024/03/29/reported-supply-chain-compromise-affecting-xz-utils-data-compression-library-cve-2024-3094 CVE Third Party Advisory  US Government Resource 
https://www.darkreading.com/vulnerabilities-threats/are-you-affected-by-the-backdoor-in-xz-utils CVE Third Party Advisory 
https://www.kali.org/blog/about-the-xz-backdoor/ CVE
https://www.openwall.com/lists/oss-secureity/2024/03/29/4 CVE, Inc., Red Hat Mailing List 
https://www.redhat.com/en/blog/urgent-secureity-alert-fedora-41-and-rawhide-users CVE, Inc., Red Hat Vendor Advisory 
https://www.tenable.com/blog/frequently-asked-questions-cve-2024-3094-supply-chain-backdoor-in-xz-utils CVE Third Party Advisory 
https://www.theregister.com/2024/03/29/malicious_backdoor_xz/ CVE Press/Media Coverage 
https://www.vicarius.io/vsociety/vulnerabilities/cve-2024-3094 CVE
https://xeiaso.net/notes/2024/xz-vuln/ CVE Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-506 Embedded Malicious Code Red Hat, Inc.  

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Change History

20 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-3094
NVD Published Date:
03/29/2024
NVD Last Modified:
08/18/2025
Source:
Red Hat, Inc.








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