USN-6434-1: PMIx vulnerability

Francois Diakhate discovered that PMIx did not properly handle race
conditions in the pmix library, which could lead to unwanted privilege
escalation. An attacker could possibly use this issue to obtain ownership
of an arbitrary file on the filesystem, under the default configuration
of the application.

application attacker conditions configuration default escalation file filesystem issue library ownership privilege privilege escalation race race conditions under usn vulnerability