CVE-2017-11171

First published: Tue Jul 11 2017(Updated: )

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.

Credit: cve@mitre.org

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• collector/nvd-index
• agent/severity
• agent/weakness
• agent/references
• agent/author
• agent/type
• agent/tags
• agent/event
• agent/description
• agent/last-modified-date
• agent/softwarecombine
• agent/first-publish-date
• collector/mitre-cve
• source/MITRE
• vendor/gnome
• canonical/gnome gnome-session
• version/gnome gnome-session/2.29.92