xz-utils backdoor: CVE-2024-3094 urgent advisory
A malicious backdoor discovered in xz 5.6.0/5.6.1 can allow unauthorized access over SSH.
A malicious backdoor discovered in xz 5.6.0/5.6.1 can allow unauthorized access over SSH.
xz-utils package versions 5.6.0 and 5.6.1 contain malicious code that can hook into the OpenSSH process and create a remote unauthorized access backdoor. One of the most severe supply chain incidents on record.
Stable Ubuntu releases are not affected; however, Noble beta/preview images contained the risky xz version. Canonical rapidly released clean packages.
xz --version → If 5.6.0 or 5.6.1, urgent intervention is requiredVelociraptor allows some sensitive artifacts to be gated by additional permissions. For example, the Linux.Sys.BashShell artifact allows arbitrary command execution on endpoints, and so it requires the EXECVE permission to schedule. However, no such check was implemented for client monitoring artifacts. Additionally there was no requirement that client monitoring artifacts carry the CLIENT_EVENTS type. This allows any user who can schedule client monitoring artifacts to also
Linux Kernel contains an unspecified vulnerability that can allow for privilege escalation via IPv6 networking subsystem. This vulnerability can impact multiple products, including but not limited to Suse, Red Hat, and other products using Linux.
Linux Kernel contains an out-of-bounds memory write vulnerability which could allow a local user to gain privileged access or cause a denial of service on the system.