#VU87917 Embedded malicious code (backdoor) in XZ Utils - CVE-2024-3094

Description

The vulnerability allows a remote attacker to gain unauthorized access to the application.

The vulnerability exists due to presence of embedded malicious functionality in the application code (aka backdoor) that allows a remote attacker to gain unauthorized access to the system.

Note, the vulnerability is being actively exploited in the wild.

Remediation

External links

• 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://news.ycombinator.com/item?id=39865810
• https://arstechnica.com/security/2024/03/backdoor-found-in-widely-used-linux-utility-breaks-encrypted-ssh-connections/
• https://www.theregister.com/2024/03/29/malicious_backdoor_xz/
• 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://aws.amazon.com/security/security-bulletins/AWS-2024-002/
• https://www.tenable.com/blog/frequently-asked-questions-cve-2024-3094-supply-chain-backdoor-in-xz-utils
• https://openssf.org/blog/2024/03/30/xz-backdoor-cve-2024-3094/
• https://bugzilla.suse.com/show_bug.cgi?id=1222124
• https://security.archlinux.org/CVE-2024-3094
• https://security.alpinelinux.org/vuln/CVE-2024-3094
• https://security-tracker.debian.org/tracker/CVE-2024-3094
• https://lists.freebsd.org/archives/freebsd-security/2024-March/000248.html
• https://news.ycombinator.com/item?id=39877267
• https://gynvael.coldwind.pl/?lang=en&id=782