CVE-2017-8921: Path Traversal
In FlightGear before 2017.2.1, the FGCommand interface allows overwriting any file the user has write access to, but not with arbitrary data: only with the contents of a FlightGear flightplan (XML). A resource such as a malicious third-party aircraft could exploit this to damage files belonging to the user. Both this issue and CVE-2016-9956 are directory traversal vulnerabilities in Autopilot/routemgr.cxx - this one exists because of an incomplete fix for CVE-2016-9956.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2017-8921?
CVE-2017-8921 is classified as a high severity vulnerability due to its potential to overwrite critical files.
How do I fix CVE-2017-8921?
To fix CVE-2017-8921, upgrade to FlightGear version 2017.2.1 or later, which addresses this vulnerability.
What does CVE-2017-8921 exploit?
CVE-2017-8921 exploits the FGCommand interface to allow unauthorized file overwriting with FlightGear flightplan content.
Which versions of FlightGear are affected by CVE-2017-8921?
FlightGear versions up to and including 2017.2 are affected by CVE-2017-8921.
What are the consequences of CVE-2017-8921?
The consequences of CVE-2017-8921 include the risk of overwriting user files with potentially damaging flightplan data.