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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

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

Weakness Enumeration

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

Known Affected Software Configurations Switch to CPE 2.2

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Change History

18 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-3094
NVD Published Date:
03/29/2024
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.