CVE-2024-3094: Xz: malicious code in distributed source
First published: Fri Mar 29 2024(Updated: )
Last updated 24 July 2024
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/xz-utils | 5.2.5-2.1~deb11u1 5.4.1-0.2 5.6.3-1 | |
| Tukaani XZ | =5.6.0 | |
| Tukaani XZ | =5.6.1 | |
| =5.6.0 | ||
| =5.6.1 |
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Reference Links
- https://www.bleepingcomputer.com/news/security/red-hat-warns-of-backdoor-in-xz-tools-used-by-most-linux-distros/
- https://www.theregister.com/2024/03/29/malicious_backdoor_xz/
- https://www.bleepingcomputer.com/news/security/new-xz-backdoor-scanner-detects-implant-in-any-linux-binary/
- https://www.zdnet.com/article/xz-utils-might-not-have-been-the-only-sabotage-target-open-source-foundations-warn/
- https://bugzilla.redhat.com/show_bug.cgi?id=2272210
- https://www.theregister.com/2024/05/15/improving_cyber_defense_with_open/
- 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.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.vicarius.io/vsociety/vulnerabilities/cve-2024-3094
- https://xeiaso.net/notes/2024/xz-vuln/
- 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/2024/03/29/5
- http://www.openwall.com/lists/oss-security/2024/03/29/8
- http://www.openwall.com/lists/oss-security/2024/03/29/4
- 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/2024/03/30/5
- http://www.openwall.com/lists/oss-security/2024/03/30/36
- http://www.openwall.com/lists/oss-security/2024/04/16/5
- https://launchpad.net/bugs/cve/CVE-2024-3094
- https://www.bleepingcomputer.com/news/security/detecting-living-off-the-land-attacks-with-wazuh/
- https://rya.nc/xz-valid-n.html
- https://lwn.net/Articles/967192/
- https://securelist.com/xz-backdoor-story-part-1/112354/
- https://securelist.com/xz-backdoor-story-part-2-social-engineering/112476/
- https://securelist.com/xz-backdoor-part-3-hooking-ssh/113007/
- https://gynvael.coldwind.pl/?lang=en&id=782
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-3094
- https://nvd.nist.gov/vuln/detail/CVE-2024-3094
- https://www.bleepingcomputer.com/news/security/how-open-source-siem-and-xdr-tackle-evolving-threats/
Frequently Asked Questions
What is the severity of CVE-2024-3094?
CVE-2024-3094 is classified as a high severity vulnerability due to the presence of malicious code in upstream tarballs.
How do I fix CVE-2024-3094?
To address CVE-2024-3094, update to a version of xz-utils that is not affected, such as 5.2.5-2.1~deb11u1 or later.
Which versions of xz-utils are affected by CVE-2024-3094?
CVE-2024-3094 affects xz-utils versions 5.6.0 and 5.6.1.
What systems are impacted by CVE-2024-3094?
CVE-2024-3094 impacts systems using xz-utils version 5.6.0 and above, commonly found in many Linux distributions.
Is there a backdoor associated with CVE-2024-3094?
Yes, CVE-2024-3094 involves a backdoor introduced in the tarballs distributed from upstream sources.
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