10

CVE-2024-3094

Warnung

Medienbericht

EPSS 84.81%
Veröffentlicht 29.03.2024 17:15:21
Zuletzt bearbeitet 19.08.2025 01:15:57
Quelle secalert@redhat.com
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Xz: malicious code in distributed source

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.

Betroffene Produkte Warnungen 1 Metriken 3 CWE 1 Referenzen 58

NVD 2 VulnDex Vulnerability Enrichment 0

Daten sind bereitgestellt durch National Vulnerability Database (NVD)

Tukaani ≫ Xz Version5.6.0

Tukaani ≫ Xz Version5.6.1

29.03.2024:

https://www.cert.at/de/warnungen/2024/3/kritische-sicherheitslucke-in-fedora-41-und-fedora-rawhide-bibliothek-xz

EPSS Metriken
Typ	Quelle	Score	Percentile
EPSS	FIRST.org	84.81%	0.994

CVSS Metriken
Quelle	Base Score	Exploit Score	Impact Score	Vector String
nvd@nist.gov	10	3.9	6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
secalert@redhat.com	10	3.9	6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CWE-506 Embedded Malicious Code

The product contains code that appears to be malicious in nature.

https://access.redhat.com/security/cve/CVE-2024-3094

Vendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2272210

Vendor Advisory

Issue Tracking

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

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://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://aws.amazon.com/security/security-bulletins/AWS-2024-002/

Third Party Advisory

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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1068024

Vendor Advisory

Mailing List

https://bugs.gentoo.org/928134

Third Party Advisory

Issue Tracking

https://bugzilla.suse.com/show_bug.cgi?id=1222124

Third Party Advisory

Issue Tracking

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://github.com/advisories/GHSA-rxwq-x6h5-x525

Third Party Advisory

https://github.com/amlweems/xzbot

https://github.com/karcherm/xz-malware

Third Party Advisory

https://gynvael.coldwind.pl/?lang=en&id=782

Third Party Advisory

Technical Description

https://lists.debian.org/debian-security-announce/2024/msg00057.html

Third Party Advisory

Mailing List

https://lists.freebsd.org/archives/freebsd-security/2024-March/000248.html

Third Party Advisory

https://lwn.net/Articles/967180/

Third Party Advisory

Issue Tracking

https://news.ycombinator.com/item?id=39865810

Third Party Advisory

Issue Tracking

https://news.ycombinator.com/item?id=39877267

Issue Tracking

https://news.ycombinator.com/item?id=39895344

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-timeline

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.archlinux.org/CVE-2024-3094

Third Party Advisory

https://security.netapp.com/advisory/ntap-20240402-0001/

https://tukaani.org/xz-backdoor/

Vendor Advisory

Issue Tracking

https://twitter.com/LetsDefendIO/status/1774804387417751958

Third Party Advisory

https://twitter.com/debian/status/1774219194638409898

Press/Media Coverage

https://twitter.com/infosecb/status/1774595540233167206

Press/Media Coverage

https://twitter.com/infosecb/status/1774597228864139400

Press/Media Coverage

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.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.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.vicarius.io/vsociety/vulnerabilities/cve-2024-3094

https://xeiaso.net/notes/2024/xz-vuln/

Third Party Advisory

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

https://nvd.nist.gov/vuln/detail/CVE-2024-3094

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2024-3094

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2024-3094

EUVD