Red Hat Bugzilla – Bug 1470706
CVE-2017-11171 gnome-session: Bad reference counting in accept_ice_connection() permits resource exhaustion
Last modified: 2017-09-05 11:31:53 EDT
Bad reference counting in the context of accept_ice_connection() in gsm-xsmp-server.c in old versions of gnome-session up until version 2.29.92 allows a local attacker to establish ICE connections to gnome-session with invalid authentication data (an invalid magic cookie). Each failed authentication attempt will leak a file descriptor in gnome-session. When the maximum number of file descriptors is exhausted in the gnome-session process, it will enter an infinite loop trying to communicate without success, consuming 100% of the CPU. The graphical session associated with the gnome-session process will stop working correctly, because communication with gnome-session is no longer possible.
Created gnome-session tracking bugs for this issue:
Affects: fedora-all [bug 1470707]