Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnome | Gnome-Session | <= 2.29.92 |
Related Weaknesses (CWE)
References
- https://bugzilla.suse.com/show_bug.cgi?id=1025068Issue TrackingThird Party Advisory
- https://github.com/GNOME/gnome-session/commit/b0dc999e0b45355314616321dbb6cb71e7Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1025068Issue TrackingThird Party Advisory
- https://github.com/GNOME/gnome-session/commit/b0dc999e0b45355314616321dbb6cb71e7Third Party Advisory
FAQ
What is CVE-2017-11171?
CVE-2017-11171 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 ...
How severe is CVE-2017-11171?
CVE-2017-11171 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-11171?
Check the references section above for vendor advisories and patch information. Affected products include: Gnome Gnome-Session.