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    Dashboard / CVE / CVE-2024-3094

    CVE-2024-3094

    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.

    Published:Mar 29, 2024
    Last Modified:Nov 20, 2025
    EPS:Mar 29, 2024
    EPSS Score:0.91333
    CVSS Score:10

    Affected Products

    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Jboss Enterprise Application Platform
    Vendor
    Tukaani
    Product
    Xz

    Exploits

    https://github.com/0xBlackash/CVE-2024-3094https://github.com/0xlane/xz-cve-2024-3094https://github.com/24Owais/threat-intel-cve-2024-3094https://github.com/ackemed/detectar_cve-2024-3094https://github.com/amlweems/xzbothttps://github.com/AndreaCicca/Sicurezza-Informatica-Presentazionehttps://github.com/ashwani95/CVE-2024-3094https://github.com/Ashwesker/Blackash-CVE-2024-3094https://github.com/Ava-Vispilio/CVE-2024-3094https://github.com/B1ack4sh/Blackash-CVE-2024-3094https://github.com/badsectorlabs/ludus_xz_backdoorhttps://github.com/been22426/CVE-2024-3094https://github.com/Bella-Bc/xz-backdoor-CVE-2024-3094-Checkhttps://github.com/bioless/xz_cve-2024-3094_detectionhttps://github.com/BOSE122/CVE-2024-3094https://github.com/brinhosa/CVE-2024-3094-One-Linerhttps://github.com/byinarie/CVE-2024-3094-infohttps://github.com/dah4k/CVE-2024-3094https://github.com/DANO-AMP/CVE-2024-3094https://github.com/Dermot-lab/TryHackhttps://github.com/devjanger/CVE-2024-3094-XZ-Backdoor-Detectorhttps://github.com/ElinaNotElina/cve-2024-3094-analysishttps://github.com/emirkmo/xz-backdoor-githubhttps://github.com/encikayelwhitehat-glitch/CVE-2024-3094https://github.com/extracoding-dozen/CVE-2024-3094https://github.com/FabioBaroni/CVE-2024-3094-checkerhttps://github.com/felipecosta09/cve-2024-3094https://github.com/fevar54/Detectar-Backdoor-en-liblzma-de-XZ-utils-CVE-2024-3094-https://github.com/Fractal-Tess/CVE-2024-3094https://github.com/galacticquest/cve-2024-3094-detecthttps://github.com/gayatriracha/CVE-2024-3094-Nmap-NSE-scripthttps://github.com/gensecaihq/CVE-2024-3094-Vulnerability-Checker-Fixerhttps://github.com/gustavorobertux/CVE-2024-3094https://github.com/h3raklez/CVE-2024-3094https://github.com/Hacker-Hermanos/CVE-2024-3094_xz_checkhttps://github.com/HackerHermanos/CVE-2024-3094_xz_checkhttps://github.com/hackingetico21/revisaxzutilshttps://github.com/hackura/xz-cve-2024-3094https://github.com/harekrishnarai/xz-utils-vuln-checkerhttps://github.com/hariskhalil555000-sketch/What-utility-does-CVE-2024-3094-refer-to-https://github.com/hazemkya/CVE-2024-3094-checkerhttps://github.com/Horizon-Software-Development/CVE-2024-3094https://github.com/iheb2b/CVE-2024-3094-Checkerhttps://github.com/Ikram124/CVE-2024-3094-analysishttps://github.com/isuruwa/CVE-2024-3094https://github.com/jbnetwork-git/CVE-2024-3094-XZ-Utils-Checkhttps://github.com/jfrog/cve-2024-3094-toolshttps://github.com/Juul/xz-backdoor-scanhttps://github.com/KaminaDuck/ansible-CVE-2024-3094https://github.com/laxmikumari615/Linux---Security---Detect-and-Mitigate-CVE-2024-3094https://github.com/lockness-Ko/xz-vulnerable-honeypothttps://github.com/lypd0/CVE-2024-3094-Vulnerabity-Checkerhttps://github.com/M1lo25/CS50Cybersecurityhttps://github.com/M1lo25/CS50FinalProjecthttps://github.com/MagpieRYL/CVE-2024-3094-backdoor-env-containerhttps://github.com/mesutgungor/xz-backdoor-vulnerabilityhttps://github.com/mhicairo-hue/cs50-cybersecurity-final-projecthttps://github.com/michalAshurov/writeup-CVE-2024-3094https://github.com/mightysai1997/CVE-2024-3094https://github.com/mightysai1997/CVE-2024-3094-infohttps://github.com/MrBUGLF/XZ-Utils_CVE-2024-3094https://github.com/mrk336/CVE-2024-3094https://github.com/Mustafa1986/CVE-2024-3094https://github.com/namegabevictoire01-sys/cs50-cybersecurity-final-projecthttps://github.com/neuralinhibitor/xzwhyhttps://github.com/nnatsopoulos/xz-backdoor-researchhttps://github.com/OpensourceICTSolutions/xz_utils-CVE-2024-3094https://github.com/pentestfunctions/CVE-2024-3094https://github.com/Preacher98/Report-XZ-Utils-CVE-2024-3094https://github.com/przemoc/xz-backdoor-linkshttps://github.com/r0binak/xzk8shttps://github.com/reuteras/CVE-2024-3094https://github.com/robertdebock/ansible-playbook-cve-2024-3094https://github.com/robertdfrench/ifuncd-uphttps://github.com/ScrimForever/CVE-2024-3094https://github.com/Security-Phoenix-demo/CVE-2024-3094-fix-exploitshttps://github.com/shefirot/CVE-2024-3094https://github.com/Simplifi-ED/CVE-2024-3094-patcherhttps://github.com/spidygal/CVE-2024-3094-Nmap-NSE-scripthttps://github.com/stevehenderson/lab_xz_backdoorhttps://github.com/teyhouse/CVE-2024-3094https://github.com/TheTorjanCaptain/CVE-2024-3094-Checkerhttps://github.com/ThomRgn/xzutils_backdoor_obfuscationhttps://github.com/Titus-soc/-CVE-2024-3094-Vulnerability-Checker-Fixer-Publichttps://github.com/valeriot30/cve-2024-3094https://github.com/vesjolyjd/Kaspersky_CVE-2024-3094https://github.com/vnchk1/sec_review_cve-2024-3094https://github.com/weltregie/liblzma-scanhttps://github.com/wgetnz/CVE-2024-3094-checkhttps://github.com/x-cmd-build/xzhttps://github.com/XiaomingX/cve-2024-3094-xz-backdoor-exploithttps://github.com/Yuma-Tsushima07/CVE-2024-3094https://github.com/zpxlz/CVE-2024-3094

    Common Weakness Enumeration

    CWE-506 Embedded Malicious Code

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    References

    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.binarly.io/blog/persistent-risk-xz-utils-backdoor-still-lurking-in-docker-images
    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/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High