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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
xz
Default version status: unaffected
5.6.0affected5.6.1affected
Red Hat Red Hat Enterprise Linux 10
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 6
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 7
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 8
Default version status: unaffected
Red Hat Red Hat Enterprise Linux 9
Default version status: unaffected
Red Hat Red Hat JBoss Enterprise Application Platform 8
Default version status: unaffected
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 ↗
- https://www.binarly.io/blog/persistent-risk-xz-utils-backdoor-still-lurking-in-docker-images ↗
- 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.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/ ↗
- 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/2024/03/29/12 ↗
- http://www.openwall.com/lists/oss-security/2024/03/29/10 ↗
- http://www.openwall.com/lists/oss-security/2024/03/30/36 ↗
- http://www.openwall.com/lists/oss-security/2024/04/16/5 ↗
- http://www.openwall.com/lists/oss-security/2024/03/29/8 ↗
- http://www.openwall.com/lists/oss-security/2024/03/30/5 ↗
- http://www.openwall.com/lists/oss-security/2024/03/29/5 ↗
- http://www.openwall.com/lists/oss-security/2024/03/29/4 ↗