A vulnerability has been discovered in XZ Utils that could allow for remote code execution. XZ is a general-purpose data compression format present in nearly every Linux distribution, both community projects and commercial product distributions. Successful exploitation of this vulnerability could allow for remote code execution in the context of the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have less rights on the system could be less impacted than those who operate with administrative user rights.

Read more... Cyber Security Advisories - MS-ISAC