CVE-2017-11171
5.5 · MEDIUMOverview
CVE-2017-11171 is a medium-severity vulnerability affecting gnome gnome-session. It was published on July 11, 2017 and has a CVSS 3.0 base score of 5.5 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from gnome. Update gnome-session to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| gnome | gnome-session | 0 | Affected |
Frequently Asked Questions
What is CVE-2017-11171?
CVE-2017-11171 is a medium-severity vulnerability affecting gnome gnome-session. It was published on July 11, 2017 and has a CVSS 3.0 base score of 5.5 (MEDIUM).
How severe is CVE-2017-11171?
This vulnerability has a CVSS 3.0 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2017-11171?
Check the references section for vendor advisories and patches from gnome. Update gnome-session to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2017-11171?
CyberStrike's AI-powered security agents can automatically detect CVE-2017-11171 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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