Vulnerability Details CVE-2017-8921
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/route_mgr.cxx - this one exists because of an incomplete fix for CVE-2016-9956.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 68.2%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
Products affected by CVE-2017-8921
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cpe:2.3:a:flightgear:flightgear:1.9.1
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cpe:2.3:a:flightgear:flightgear:2.0.0
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cpe:2.3:a:flightgear:flightgear:2.6.0
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cpe:2.3:a:flightgear:flightgear:2.6.0.1
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cpe:2.3:a:flightgear:flightgear:2016.4.1
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cpe:2.3:a:flightgear:flightgear:2016.4.2
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cpe:2.3:a:flightgear:flightgear:2016.4.3
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cpe:2.3:a:flightgear:flightgear:2016.4.4
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cpe:2.3:a:flightgear:flightgear:2017.1
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cpe:2.3:a:flightgear:flightgear:2017.2