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CVE-2017-8921

Published: 12 May 2017

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.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
flightgear
Launchpad, Ubuntu, Debian
artful Not vulnerable
(1:2017.2.1+dfsg-4)
bionic Not vulnerable
(1:2017.2.1+dfsg-4)
cosmic Not vulnerable
(1:2017.2.1+dfsg-4)
disco Not vulnerable
(1:2017.2.1+dfsg-4)
eoan Not vulnerable
(1:2017.2.1+dfsg-4)
focal Not vulnerable
(1:2017.2.1+dfsg-4)
groovy Not vulnerable
(1:2017.2.1+dfsg-4)
hirsute Not vulnerable
(1:2017.2.1+dfsg-4)
impish Not vulnerable
(1:2017.2.1+dfsg-4)
jammy Not vulnerable
(1:2017.2.1+dfsg-4)
kinetic Not vulnerable
(1:2017.2.1+dfsg-4)
lunar Not vulnerable
(1:2017.2.1+dfsg-4)
mantic Not vulnerable
(1:2017.2.1+dfsg-4)
trusty Does not exist
(trusty was needed)
upstream
Released (2017.2.1)
xenial Needed

yakkety Ignored
(end of life)
zesty Ignored
(end of life)
Patches:
upstream: https://sourceforge.net/p/flightgear/flightgear/ci/faf872e7f71ca14c567ac7080561fc785d8d2fd0/
upstream: https://sourceforge.net/p/flightgear/flightgear/ci/19ab09406e4249f2c6f8ac51938258d1c51eace0/
upstream: https://sourceforge.net/p/flightgear/flightgear/ci/c8250b10bb9a116889f831d2299678b0ef70fec2/

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N